CN113415918A - Household water purifying device - Google Patents

Household water purifying device Download PDF

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Publication number
CN113415918A
CN113415918A CN202110706214.0A CN202110706214A CN113415918A CN 113415918 A CN113415918 A CN 113415918A CN 202110706214 A CN202110706214 A CN 202110706214A CN 113415918 A CN113415918 A CN 113415918A
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CN
China
Prior art keywords
water
water inlet
filter element
layer
communicated
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Pending
Application number
CN202110706214.0A
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Chinese (zh)
Inventor
胡兴亿
韩小娟
李志强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foshan Shunde Yingfengtai Environmental Protection Technology Co ltd
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Foshan Shunde Yingfengtai Environmental Protection Technology Co ltd
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Priority to CN202110706214.0A priority Critical patent/CN113415918A/en
Publication of CN113415918A publication Critical patent/CN113415918A/en
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B1/00—Methods or layout of installations for water supply
    • E03B1/04—Methods or layout of installations for water supply for domestic or like local supply
    • E03B1/041—Greywater supply systems
    • E03B1/042—Details thereof, e.g. valves or pumps
    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • 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
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
    • 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
    • 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
    • C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
    • 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
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
    • 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
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
    • C02F2001/427—Treatment of water, waste water, or sewage by ion-exchange using mixed beds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/002—Grey water, e.g. from clothes washers, showers or dishwashers
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/42—Liquid level
    • 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
    • C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/04—Disinfection
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B1/00—Methods or layout of installations for water supply
    • E03B1/04—Methods or layout of installations for water supply for domestic or like local supply
    • E03B1/041—Greywater supply systems
    • E03B2001/045—Greywater supply systems using household water
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/131—Reverse-osmosis

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

The invention discloses a household water purifying device, which comprises a water inlet, a filtering branch, a backflow branch, a water purifying device and a water taking device, wherein the water inlet is connected with the filtering branch; the filtering branch comprises a preposed filter element, a supercharging device and an RO membrane filter element; the front filter element is provided with a raw water inlet and a primary filter water outlet; the RO membrane filter element is provided with a primary filter water inlet end, a pure water outlet end and a wastewater end; the raw water inlet is communicated with the water inlet; the primary filter water outlet is communicated with the primary filter water inlet end, and the pure water outlet end is communicated with the water taking device; the water body purification device is provided with a sewage treatment port and purifies sewage; the reflux branch comprises a water storage tank and a mixed ion exchanger which are communicated with each other; the water storage tank is communicated with the water body purification device. Domestic purifier carries out desalination to waste water through the mixed ion exchanger in the backward flow branch road to filter waste water again and utilize, improve waste water utilization ratio, and then carry out purification treatment, the utilization ratio of improvement water resource to kitchen sewage through water purifier.

Description

Household water purifying device
Technical Field
The invention relates to the technical field of water purification, in particular to a household water purification device.
Background
The fresh water utilized by human beings mainly comprises river water, lake water and shallow groundwater, the water reserves of the parts are very small, and only account for 0.3 percent of the total reserves of the global fresh water, which is equivalent to one hundred thousand percent of the total water of the global water, so the fresh water utilized by human beings is very short. However, at present, there are still many cases of water source pollution, and the problem of water resource shortage is getting worse.
At present, reverse osmosis membranes are commonly used in families to purify tap water so as to prepare pure water which can be directly drunk. More concentrated water is generated during purification and is wasted, and the utilization rate of water is not high. Moreover, at present, sewage generated by vegetable washing, hand washing, flushing and the like in families can not be reused, so that water resource waste is caused.
Disclosure of Invention
The invention aims to provide a household water purifying device, which solves the problem that the existing water purifying device cannot effectively utilize and purify waste water generated by washing vegetables, hands and washing in a family and the like.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a household water purifying device, which comprises a water inlet, a filtering branch, a backflow branch, a water purifying device and a water taking device, wherein the water inlet is connected with the filtering branch;
the filtering branch comprises a preposed filter element, a supercharging device and an RO membrane filter element; the preposed filter element is provided with a raw water inlet and a primary filter water outlet; the RO membrane filter element is provided with a primary filter water inlet end, a pure water outlet end and a wastewater end;
the raw water inlet is communicated with the water inlet; the primary filter water outlet is communicated with the primary filter water inlet end, and the supercharging device is arranged between the primary filter water outlet and the primary filter water inlet end; the pure water outlet end is communicated with the water taking device;
the inlet end of the backflow branch is communicated with the wastewater end, and the outlet end of the backflow branch is communicated between the raw water inlet and the water inlet;
the water body purification device is provided with a sewage treatment port and purifies sewage;
the reflux branch comprises a water storage tank and a mixed ion exchanger which are communicated with each other; the water storage tank is communicated with the water body purification device; the water storage tank is used for storing the wastewater generated by the RO membrane filter element and the purified water purified by the water body purifying device;
and the mixed ion exchanger is used for desalting the water stored in the water storage tank.
In the household water purifying device, the water purifying device comprises an interception layer and a packing layer; the interception layer is detachably connected with the filler layer;
the interception layer comprises a top frame plate and a flow distribution plate; the top frame plate is of a hollow rectangular structure; the flow distribution plate is detachably connected to the inner wall of the top frame plate and divides the top frame plate into two sewage inlets; the sewage treatment port is arranged above the flow distribution plate; intercepting barrier strips are arranged at intervals of the splitter plates;
the packing layer is arranged at the bottom of the interception layer and comprises a bottom frame, and a coarse gravel filtering layer, a fine sand filtering layer and an active carbon filtering layer are arranged in the bottom frame; the bottom of underframe is equipped with the purified water export, the purified water export with the holding water tank is connected.
In the household water purifying device, the flow distribution plate is arranged in the middle of the top frame plate and comprises a left inclined surface and a right inclined surface;
the left inclined surface is inclined to the left side, and the right inclined surface is inclined to the right side.
In the household water purifying device, the interception layer further comprises a left interception plate and a right interception plate which are symmetrically arranged;
the left interception plate is detachably connected to the oblique lower part of the left inclined surface, and the left interception plate gradually inclines downwards towards the right;
the right interception plate is detachably connected to the oblique lower part of the right inclined surface, and the right interception plate gradually inclines downwards towards the left;
the equal interval of board is held back on the left side and the right side is held back and is provided with the barb blend stop.
In the household water purifying device, the coarse gravel filtering layer, the fine sand filtering layer and the active carbon filtering layer are respectively separated by a filter screen;
the gravel filtering layer is filled with quartz stones with the diameter of 1-3 cm, the fine sand filtering layer is filled with fine sand with the diameter of 0.1-0.5 cm, and the activated carbon filtering layer is filled with activated carbon particles with the particle size of 0.5-1 cm.
In the household water purifying device, an ozone disinfection device is arranged in the water storage tank and disinfects the water stored in the water storage tank.
In the household water purifying device, the backflow branch further comprises a water storage barrel and a carbon rod filter element;
the water inlet end of the carbon rod filter element is connected with the water outlet end of the mixed ion exchanger, and the water outlet end of the carbon rod filter element is connected with the water inlet end of the water storage barrel;
the water outlet end of the water storage barrel is provided with a metering pump, and the water storage barrel is used for storing the treated water discharged by the carbon rod filter element.
The household water purifying device further comprises a water taking check valve, and the water taking check valve is arranged between the pure water outlet end and the water taking device.
The household water purifying device also comprises a water inlet valve and a high-pressure switch;
the water inlet valve is arranged between the primary filtering water outlet and the supercharging device;
the high-voltage switch is positioned between the water taking check valve and the water taking device; the high-pressure switch is electrically connected with the supercharging device and the water inlet valve respectively.
One technical scheme in the invention can have the following beneficial effects:
domestic purifier has set up backward flow branch road and water purifier, carries out desalination to waste water through the mixed ion exchanger in the backward flow branch road to filter waste water again and utilize, improved the utilization ratio of waste water. Through the treatment of the mixed ion exchanger, the content of metal ions such as calcium ions, magnesium ions and the like in the wastewater is reduced, so that the phenomenon of scaling of the RO membrane filter core caused by the backflow of the wastewater is avoided, and the service life of the RO membrane filter core is prolonged;
and, carry out purification treatment to kitchen sewage through water purifier, can reuse and wash vegetables, fruit or the water that the rice washed the production, make it can carry out the reutilization, improve the utilization ratio of water resource, realize energy-concerving and environment-protective requirement.
Drawings
The drawings are further illustrative of the invention and the content of the drawings does not constitute any limitation of the invention.
FIG. 1 is a schematic structural diagram of one embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a water purifying apparatus according to one embodiment of the present invention;
FIG. 3 is a schematic sectional view of a water purification apparatus according to an embodiment of the present invention;
in the drawings: a water inlet a, a water taking device b, a sewage treatment port c and a purified water outlet d;
a water body purification device 1; the device comprises a preposed filter element 2, a supercharging device 3, an RO membrane filter element 4, a water storage tank 5, a mixed ion exchanger 6, a water taking check valve 7, a water inlet valve 8, a high-pressure switch 9, a water storage barrel 101, a carbon rod filter element 102 and a metering pump 103;
an interception layer 11 and a filler layer 12; a raw water inlet 21 and a primary filtration water outlet 22; a primary filtering water inlet end 41, a pure water outlet end 42 and a waste water end 43; an ozone sterilizing device 51;
top frame plate 111, flow distribution plate 112, interception baffle 1121, left interception plate 113, right interception plate 114 and barb baffle 1131; the bottom frame 121, the coarse gravel filter layer 122, the fine sand filter layer 123 and the active carbon filter layer 124.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 3, the invention provides a household water purifying device, which comprises a water inlet a, a filtering branch, a backflow branch, a water purifying device 1 and a water taking device b;
the filtering branch comprises a preposed filter element 2, a supercharging device 3 and an RO membrane filter element 4; the preposed filter element 2 is provided with a raw water inlet 21 and a primary filtering water outlet 22; the RO membrane filter element 4 is provided with a primary filter water inlet end 41, a pure water outlet end 42 and a waste water end 43;
the raw water inlet 21 is communicated with the water inlet a; the primary filter water outlet 22 is communicated with the primary filter water inlet end 41, and the supercharging device 3 is arranged between the primary filter water outlet 22 and the primary filter water inlet end 41; the pure water outlet end 42 is communicated with the water taking device b;
the inlet end of the return branch is communicated with the waste water end 43, and the outlet end of the return branch is communicated between the raw water inlet 21 and the water inlet a;
the water body purification device 1 is provided with a sewage treatment port c, and the water body purification device 1 purifies sewage;
the return branch comprises a water storage tank 5 and a mixed ion exchanger 6 which are communicated with each other; the water storage tank 5 is communicated with the water body purification device 1; the water storage tank 5 is used for storing the wastewater generated by the RO membrane filter element 4 and the purified water purified by the water body purification device 1;
the mixed ion exchanger 6 performs desalination treatment on the water stored in the water storage tank 5.
In one embodiment of the invention, the household water purifying device is provided with the return branch and the water body purifying device 1, desalination treatment is carried out on the wastewater through the mixed ion exchanger 6 in the return branch, and the wastewater is filtered and utilized again, so that the utilization rate of the wastewater is improved. Through the treatment of the mixed ion exchanger 6, the content of metal ions such as calcium ions, magnesium ions and the like in the wastewater is reduced, so that the phenomenon that the RO membrane filter element 4 is scaled due to the backflow of the wastewater is avoided, and the service life of the RO membrane filter element 4 is prolonged.
And water purifier 1 then carries out purification treatment to kitchen sewage, can reuse and wash vegetables, fruit or rice and wash the water that produces, makes it can carry out the reutilization, improves the utilization ratio of water resource, realizes energy-concerving and environment-protective requirement.
The water inlet a is connected with an external water source, and raw water is provided by the external water source; the preposed filter element 2 filters raw water into primary filtered water; the booster device 3 pumps the primary filtered water to the RO membrane filter element 4, and the RO membrane filter element 4 filters the primary filtered water into pure water and generates wastewater in the filtering process; the water body purification device 1 filters kitchen sewage into purified water.
The mixed ion exchanger 6 can refer to the existing mixed ion exchanger 6, the mixed ion exchanger 6 is filled with anion exchange resin and cation exchange resin, and the anion exchange resin and the cation exchange resin replace cations and anions in water to achieve the aim of desalination.
Referring to fig. 2, specifically, the water purifying device 1 includes an interception layer 11 and a filler layer 12; the interception layer 11 is detachably connected with the filler layer 12;
the trapping layer 11 comprises a top frame plate 111 and a diverter plate 112; the top frame plate 111 is of a hollow rectangular structure; the flow distribution plate 112 is detachably connected to the inner wall of the top frame plate 111, and divides the top frame plate 111 into two sewage inlets; the sewage treatment port c is arranged above the flow distribution plate 112; the diversion plate 112 is provided with retaining stop bars 1121 at intervals;
the packing layer 12 is installed at the bottom of the interception layer 11, the packing layer 12 comprises a bottom frame 121, and a coarse gravel filtering layer 122, a fine sand filtering layer 123 and an activated carbon filtering layer 124 are arranged in the bottom frame 121; the bottom of the bottom frame 121 is provided with a purified water outlet d, and the purified water outlet d is connected with the water storage tank 5.
The top of top frame plate 111 is equipped with the apron, and the outlet d that purifies waste water sets up on the apron, so sets up for kitchen sewage can directly fall on flow distribution plate 112, makes flow distribution plate 112 can hold back the floater in the sewage.
The top frame plate 111 and the bottom frame 121 have the same cross section size, kitchen sewage enters from the sewage treatment port c and flows through the flow distribution plate 112, and the flow distribution plate 112 stops large floating objects and sundries in the kitchen sewage; then, the kitchen sewage enters the packing layer 12, and after being filtered layer by the coarse gravel filter layer 122, the fine sand filter layer 123 and the activated carbon filter layer, the kitchen sewage is purified and discharged from the purified water outlet d.
Entrapment layer 11 and packing layer 12 can be dismantled and be connected for the user can dismantle entrapment layer 11, washs diversion plate 112, avoids the floater fermentation on entrapment layer 11 and arouses the problem of stink.
Specifically, the flow distribution plate 112 is disposed in the middle of the top frame plate 111, and the flow distribution plate 112 includes a left inclined surface and a right inclined surface;
the left inclined surface is inclined to the left side, and the right inclined surface is inclined to the right side.
By adopting the structure, kitchen sewage falls on the flow distribution plate 112 after entering from the sewage treatment port c, one part of the kitchen sewage flows to the packing layer 12 from the left inclined plane, and the other part of the kitchen sewage flows to the packing layer 12 from the right inclined plane, so that the contact area between the flow distribution plate 112 and the sewage is increased, and the interception barrier strip 1121 on the flow distribution plate 112 can fully intercept floating objects in the sewage.
Further, the interception layer 11 further comprises a left interception plate 113 and a right interception plate 114 which are symmetrically arranged;
the left interception plate 113 is detachably connected to the oblique lower part of the left inclined plane, and the left interception plate 113 gradually inclines downwards towards the right;
the right interception plate 114 is detachably connected to the oblique lower part of the right inclined plane, and the right interception plate 114 gradually inclines downwards towards the left;
the left interception plate 113 and the right interception plate 114 are provided with barb barrier strips 1131 at intervals.
Adopt this kind of structure, can further hold back the floater in the kitchen sewage, prevent that the floater in the sewage from getting into packing layer 12, avoid the floater to ferment in packing layer 12 and produce the problem of stink.
Referring to fig. 3, further, the coarse gravel filter layer 122, the fine sand filter layer 123 and the activated carbon filter layer 124 are respectively separated by a filter screen;
the coarse gravel filter layer 122 is filled with quartz stones with the diameter of 1-3 cm, the fine sand filter layer 123 is filled with fine sand with the diameter of 0.1-0.5 cm, and the activated carbon filter layer 124 is filled with activated carbon particles with the particle size of 0.5-1 cm.
By adopting the structure, the kitchen sewage is filtered layer by layer through the coarse gravel filtering layer 122, the fine sand filtering layer 123 and the activated carbon filtering layer 124, impurities and peculiar smell in the kitchen sewage are removed, and the moderate purification of the kitchen sewage is realized.
Specifically, an ozone disinfection device 51 is provided in the water storage tank 5, and the ozone disinfection device 51 disinfects the water stored in the water storage tank 5.
In an embodiment of the present invention, the water storage tank 5 is provided with an ozone disinfection device 51, and the ozone disinfection device 51 generates ozone to disinfect the water stored in the water storage tank 5, remove bacteria in the water source, and realize deep purification of the water source, so that domestic sewage can be reused, the utilization rate of the water source is improved, and the requirements of energy saving and environmental protection are met. Furthermore, the ozone can reduce the burden of the RO membrane cartridge 4, thereby prolonging the service life of the RO membrane cartridge 4.
Preferably, the return branch further comprises a water storage barrel 101 and a carbon rod filter element 102;
the water inlet end of the carbon rod filter element 102 is connected with the water outlet end of the mixed ion exchanger 6, and the water outlet end of the carbon rod filter element 102 is connected with the water inlet end of the water storage barrel 101;
the water outlet end of the water storage barrel 101 is provided with a metering pump 103, and the water storage barrel 101 is used for storing the treated water discharged by the carbon rod filter element 102.
The water storage bucket 101 plays a role in storing the treated water, and in order to prevent the water in the water storage bucket 101 from entering the pre-filter element 2 and the RO membrane filter element 4 in a large amount in a short time, the burden of the RO membrane in the RO membrane filter element 4 is increased, and the treated water and the raw water need to be mixed for many times. In one embodiment of the present invention, the water storage tub 101 mixes the treated water with the raw water by the metering pump 103.
The carbon rod filter element 102 plays a role in adsorbing organic matter particles, rust, residual chlorine and peculiar smell in the treated water, avoids the problem that impurities in the treated water are accumulated in the water storage barrel 101, and further reduces the burden of the RO membrane in the RO membrane filter element 4.
Optionally, the household water purification device further comprises a water intake check valve 7, and the water intake check valve 7 is disposed between the pure water outlet end 42 and the water intake device b.
The water intake check valve 7 can refer to a check valve of the existing water purifier, so that water flow cannot reversely return to the pure water outlet end 42 from the water intake device b, and the pure water is prevented from flowing back into the RO membrane filter element 4 again.
Optionally, the household water purifying device further comprises a water inlet valve 8 and a high-pressure switch 9;
the water inlet valve 8 is arranged between the primary filter water outlet 22 and the supercharging device 3;
the high-voltage switch 9 is positioned between the water taking check valve 7 and the water taking device b; the high-pressure switch 9 is electrically connected with the supercharging device 3 and the water inlet valve 8 respectively.
As an embodiment, the water quality filtering device also comprises a water inlet valve 8 and a high-pressure switch 9. When the water taking device b is closed, the supercharging device 3 continues to work so that the RO membrane can continue to produce water, the pressure of a water path between the water taking check valve 7 and the water taking device b also gradually rises, and when the pressure of the water path reaches the threshold value of the high-pressure switch 9, the high-pressure switch 9 controls the supercharging device 3 and the water inlet valve 8 to be closed; the water intake check valve 7 can keep the water path between the water intake check valve 7 and the water intake device b in a high-pressure state, so that the supercharging device 3 is prevented from being started in a standby state.
When the water taking device b is opened, water flows out of the water taking device b, so that the pressure between the water taking check valve 7 and the water taking device b is reduced; when the waterway pressure between the water taking check valve 7 and the water taking device b is lower than the threshold value of the high-pressure switch 9, the high-pressure switch 9 controls the supercharging device 3 and the water inlet valve 8 to be opened, the supercharging device 3 continues to work, and primary filtered water is pumped into the RO membrane filter element 4, so that the RO membrane filter element 4 can continue to produce water.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Other embodiments of the invention will occur to those skilled in the art without the exercise of inventive faculty based on the explanations herein, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined in the appended claims.

Claims (9)

1. A domestic purifier which characterized in that: comprises a water inlet, a filtering branch, a backflow branch, a water body purification device and a water taking device;
the filtering branch comprises a preposed filter element, a supercharging device and an RO membrane filter element; the preposed filter element is provided with a raw water inlet and a primary filter water outlet; the RO membrane filter element is provided with a primary filter water inlet end, a pure water outlet end and a wastewater end;
the raw water inlet is communicated with the water inlet; the primary filter water outlet is communicated with the primary filter water inlet end, and the supercharging device is arranged between the primary filter water outlet and the primary filter water inlet end; the pure water outlet end is communicated with the water taking device;
the inlet end of the backflow branch is communicated with the wastewater end, and the outlet end of the backflow branch is communicated between the raw water inlet and the water inlet;
the water body purification device is provided with a sewage treatment port and purifies sewage;
the reflux branch comprises a water storage tank and a mixed ion exchanger which are communicated with each other; the water storage tank is communicated with the water body purification device; the water storage tank is used for storing the wastewater generated by the RO membrane filter element and the purified water purified by the water body purifying device;
and the mixed ion exchanger is used for desalting the water stored in the water storage tank.
2. A domestic water purification unit according to claim 1, wherein: the water body purification device comprises an interception layer and a filler layer; the interception layer is detachably connected with the filler layer;
the interception layer comprises a top frame plate and a flow distribution plate; the top frame plate is of a hollow rectangular structure; the flow distribution plate is detachably connected to the inner wall of the top frame plate and divides the top frame plate into two sewage inlets; the sewage treatment port is arranged above the flow distribution plate; intercepting barrier strips are arranged at intervals of the splitter plates;
the packing layer is arranged at the bottom of the interception layer and comprises a bottom frame, and a coarse gravel filtering layer, a fine sand filtering layer and an active carbon filtering layer are arranged in the bottom frame; the bottom of underframe is equipped with the purified water export, the purified water export with the holding water tank is connected.
3. A domestic water purification unit according to claim 2, wherein: the flow distribution plate is arranged in the middle of the top frame plate and comprises a left inclined plane and a right inclined plane;
the left inclined surface is inclined to the left side, and the right inclined surface is inclined to the right side.
4. A domestic water purification unit according to claim 3, wherein: the interception layer also comprises a left interception plate and a right interception plate which are symmetrically arranged;
the left interception plate is detachably connected to the oblique lower part of the left inclined surface, and the left interception plate gradually inclines downwards towards the right;
the right interception plate is detachably connected to the oblique lower part of the right inclined surface, and the right interception plate gradually inclines downwards towards the left;
the equal interval of board is held back on the left side and the right side is held back and is provided with the barb blend stop.
5. A domestic water purification unit according to claim 2, wherein: the coarse gravel filtering layer, the fine sand filtering layer and the active carbon filtering layer are respectively separated by a filter screen;
the gravel filtering layer is filled with quartz stones with the diameter of 1-3 cm, the fine sand filtering layer is filled with fine sand with the diameter of 0.1-0.5 cm, and the activated carbon filtering layer is filled with activated carbon particles with the particle size of 0.5-1 cm.
6. A domestic water purification unit according to claim 1, wherein: an ozone disinfection device is arranged in the water storage tank and disinfects the water stored in the water storage tank.
7. A domestic water purification unit according to claim 1, wherein: the backflow branch also comprises a water storage barrel and a carbon rod filter element;
the water inlet end of the carbon rod filter element is connected with the water outlet end of the mixed ion exchanger, and the water outlet end of the carbon rod filter element is connected with the water inlet end of the water storage barrel;
the water outlet end of the water storage barrel is provided with a metering pump, and the water storage barrel is used for storing the treated water discharged by the carbon rod filter element.
8. A domestic water purification unit according to claim 1, wherein: still include the water intaking check valve, the water intaking check valve set up in between pure water play water end and the water intaking device.
9. A domestic water purification unit according to claim 1, wherein: the device also comprises a water inlet valve and a high-pressure switch;
the water inlet valve is arranged between the primary filtering water outlet and the supercharging device;
the high-voltage switch is positioned between the water taking check valve and the water taking device; the high-pressure switch is electrically connected with the supercharging device and the water inlet valve respectively.
CN202110706214.0A 2021-06-24 2021-06-24 Household water purifying device Pending CN113415918A (en)

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