CN214880664U - Water purifier waterway system of back flush - Google Patents
Water purifier waterway system of back flush Download PDFInfo
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- CN214880664U CN214880664U CN202121289981.8U CN202121289981U CN214880664U CN 214880664 U CN214880664 U CN 214880664U CN 202121289981 U CN202121289981 U CN 202121289981U CN 214880664 U CN214880664 U CN 214880664U
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Abstract
The utility model discloses a water purifier waterway system for backwashing, which comprises a composite filter element, a primary filtering branch, a supercharging device, an RO membrane filter element, a water outlet pipe, a water taking device, a backwashing branch and a backwashing device; the back washing device is arranged on the back washing branch; a pressure storage device is arranged in the backwashing device; the primary filter water discharged by the composite filter element and the purified water discharged by the RO membrane filter element respectively enter the backwashing device; the pressure storage device separates primary filtered water from pure water; when the RO membrane filter element stops producing water, primary filtered water reversely extrudes purified water to the water outlet end through the pressure storage device. The water purifier waterway system is provided with a backwashing branch and a backwashing device, and when the water purifier waterway system stops producing water, the pressure difference between the primary filtering water outlet and the water outlet end is utilized to reversely and rewashing the RO membrane filter element by purified water in the backwashing device, so that the problem that the TDS value of the discharged water at the front section of the water purifier waterway system is higher is effectively avoided.
Description
Technical Field
The utility model relates to a water purifier technical field especially relates to a water purifier waterway system of back flush.
Background
At present, tap water contains a lot of substances which are not beneficial to health, so more and more people can set up water purifying equipment at home to filter the tap water. The existing water purifying equipment mainly depends on a reverse osmosis membrane (RO membrane) to filter tap water, and the water purifying equipment utilizes the RO membrane to separate the water in the tap water from impurities such as inorganic salt, heavy metal ions, organic matters, colloid, bacteria, viruses and the like under pressure.
When the water purifying equipment is in a standby state for a long time, ions in the tap water and the waste water can be gradually diffused into the pure water, so that the TDS value of the pure water is increased; when starting water purification unit next time, the TDS value of its anterior segment play water can be than higher, influences user's health.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a water purifier waterway system of back flush to solve above-mentioned problem.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a water purifier waterway system for backwashing, which comprises a composite filter element, a primary filtering branch, a supercharging device, an RO membrane filter element, a water outlet pipe, a water taking device, a backwashing branch and a backwashing device;
the composite filter element is provided with a raw water inlet and a primary filter water outlet; the RO membrane filter element is provided with a water inlet end, a water outlet end and a wastewater end;
the raw water inlet is communicated with an external water source; the primary filtering water outlet is communicated with the water inlet end through the primary filtering branch;
the primary filtering water outlet is communicated with the water outlet end through the back washing branch;
the other end of the water outlet pipe is communicated with the water outlet end, and the other end of the water outlet pipe is communicated with the water taking device;
the pressure boosting device is arranged on the primary filtering branch;
the back washing device is arranged on the back washing branch; a pressure storage device is arranged in the backwashing device; the primary filter water discharged by the composite filter element and the purified water discharged by the RO membrane filter element respectively enter the backwashing device; the pressure storage device separates primary filtered water from pure water;
when the RO membrane filter element produces water, purified water enters the backwashing device through the water outlet end, and primary filtered water is extruded to the primary filtering branch through the pressure storage device; when the RO membrane filter element stops producing water, primary filtered water reversely extrudes purified water to the water outlet end through the pressure storage device.
The back-flushing water purifier waterway system also comprises a back-seepage check valve; the reverse osmosis check valve is arranged on the back washing branch and is positioned between the back washing device and the water outlet end; and the reverse osmosis check valve is used for forward conduction and reverse throttling.
In the water path system of the backwashing water purifier, the pressure storage device is an elastic bag which divides the backwashing device into a first containing cavity and a second containing cavity;
the first cavity is used for accommodating primary filtered water;
the second cavity is used for containing purified water.
The backwashing water purifier waterway system further comprises a pressure reducing valve, wherein the pressure reducing valve is arranged on the backwashing branch and is positioned between the primary filter water outlet and the backwashing device.
In the waterway system of the backwashing water purifier, the composite filter element comprises a folded PP cotton filter element and a carbon rod filter element;
the folding PP cotton filter element is wrapped on the outer side of the carbon rod filter element.
The back-flushing water purifier waterway system further comprises a check valve, and the check valve is arranged on the water outlet pipe.
The back-flushing water purifier waterway system also comprises a water inlet valve and a high-pressure switch;
the water inlet valve is arranged on the primary filtering branch and is positioned between the primary filtering water outlet and the supercharging device;
the high-pressure switch is positioned between the check valve and the water taking device; the high-pressure switch is electrically connected with the supercharging device and the water inlet valve respectively.
The back-flushing water purifier waterway system also comprises a waste water pipe and a waste water valve;
one end of the waste water pipe is communicated with the waste water end, and the other end of the waste water pipe is communicated with an external water outlet;
the waste water valve is mounted on the waste water pipe.
The utility model provides a technical scheme can have following beneficial effect:
the utility model discloses an embodiment has set up back flush branch road and back flush unit, utilizes water purifier waterway system when RO membrane filter core stops to make water, just strains the delivery port and goes out the pressure differential of water end, and the reverse RO membrane filter core that rewrites of pure water of storage in back flush unit. By the arrangement, the RO membrane can be backwashed in time, and the wastewater in the RO membrane filter element can be discharged in the process of backwashing, so that the problem that the membrane-front wastewater in the RO membrane filter element pollutes the membrane-rear pure water in the standby process of a water purifier waterway system is solved; when the water taking device is opened next time, because the waste water in the RO membrane is discharged after the last water taking is completed, clean pure water can be directly taken, and the problem that the TDS value of the front section effluent of the water purifier waterway system is higher is effectively avoided.
Drawings
The accompanying drawings are provided to further illustrate the present invention, but the content in the accompanying drawings does not constitute any limitation to the present invention.
FIG. 1 is a schematic diagram of one embodiment of the present invention;
in the drawings: the device comprises a composite filter element 1, a primary filtering branch 2, a supercharging device 3, an RO membrane filter element 4, a water outlet pipe 5, a water taking device 6, a backwashing branch 7, a backwashing device 8 and a reverse osmosis check valve 9;
a pressure reducing valve 10, a check valve 20, a water inlet valve 30, a high-pressure switch 40, a waste water pipe 50 and a waste water valve 60;
a raw water inlet 111 and a primary filtration water outlet 112; a water inlet end 211, a water outlet end 212, a waste water end 213;
a pressure storage device 811; first volume 812, second volume 813.
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 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 drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, the utility model provides a water purifier waterway system for backwashing, which comprises a composite filter element 1, a primary filtering branch 2, a supercharging device 3, an RO membrane filter element 4, a water outlet pipe 5, a water intake device 6, a backwashing branch 7 and a backwashing device 8;
the composite filter element 1 is provided with a raw water inlet 111 and a primary filter water outlet 112; the RO membrane cartridge 4 has a water inlet end 211, a water outlet end 212 and a waste water end 213;
the raw water inlet 111 is communicated with an external water source; the primary filtering water outlet 112 is communicated with the water inlet end 211 through the primary filtering branch 2;
the primary filter water outlet 112 is communicated with the water outlet end 212 through the back washing branch 7;
the other end of the water outlet pipe 5 is communicated with the water outlet end 212, and the other end of the water outlet pipe 5 is communicated with the water taking device 6;
the pressure boosting device 3 is arranged on the primary filtering branch 2;
the backwashing device 8 is arranged on the backwashing branch 7; a pressure storage device 811 is arranged in the backwashing device 8; the primary filter water discharged by the composite filter element 1 and the purified water discharged by the RO membrane filter element 4 respectively enter the backwashing device 8; the pressure storage device 811 separates primary filtered water from purified water;
when the RO membrane filter element 4 produces water, purified water enters the backwashing device 8 through the water outlet end 212 and primary filtered water is extruded to the primary filtering branch 2 through the pressure storage device 811; when the RO membrane filter element 4 stops producing water, the primary filtered water reversely extrudes purified water to the water outlet end 212 through the pressure storage device 811.
The utility model discloses an embodiment has set up back flush branch road 7 and back flush unit 8, utilizes water purifier water route system when RO membrane filter core 4 stops to make water, just strains delivery port 112 and the pressure differential of play water end 212, and the reverse RO membrane filter core 4 that rewrites the pure water of saving in back flush unit 8. By the arrangement, the RO membrane can be backwashed in time, and the wastewater in the RO membrane filter element 4 can be discharged in the process of backwashing, so that the problem that the membrane-front wastewater in the RO membrane filter element pollutes the membrane-rear pure water in the standby process of a water purifier waterway system is solved; when the water taking device is opened next time, because the waste water in the RO membrane is discharged after the last water taking is completed, clean pure water can be directly taken, and the problem that the TDS value of the front section effluent of the water purifier waterway system is higher is effectively avoided.
The water filtered by the composite filter element 1 is primary filtered water, and the water filtered by the RO membrane filter element 4 is purified water. Because the purified water is conveyed through the supercharging device 3, when the supercharging device 3 stops working, the RO membrane filter element 4 stops producing water, the purified water is not produced, and the pressure of the purified water is reduced; and the water pressure of the external water source is constant, and the water pressure of the primary filtered water is consistent with that of the external water source.
When the water taking device 6 stops taking water, the supercharging device 3 continues to pump the primary filtered water into the RO membrane filter element 4, so that the RO membrane filter element 4 continues to produce water, the purified water continues to enter the backwashing device 8, the pressure of one side of the purified water in the backwashing device 8 is greater than that of one side of the primary filtered water, and the purified water continues to extrude the primary filtered water through the pressure storage device 811; the water taking device 6 stops taking water, the backwashing device 8 is gradually filled with purified water, so that the pressure of the water outlet pipe 5 is gradually increased, and when the pressure of the water outlet pipe 5 is greater than the threshold value of the supercharging device 3, the supercharging device 3 is closed; at the moment, the RO membrane filter element 4 stops making water, and the pressure of the primary filtered water side in the backwashing device 8 is greater than that of the purified water side; the primary filtered water reversely extrudes purified water through the pressure storage device 811, the purified water enters the RO membrane filter element 4 from the water outlet end 212, and the RO membrane of the RO membrane filter element 4 is reversely flushed; the purified water then enters the waste water end 213 and is discharged from the waste water end 213.
The structure of the back washing branch 7 and the back washing device 8 is adopted, the water purifier can be suitable for various water paths of the existing water purifier, and the back washing effect of the existing water purifier can be obtained only by modifying the water path of the water inlet end 211 between the primary filter water outlet 112.
Specifically, the back-flushing water purifier waterway system further comprises a reverse osmosis check valve 9; the reverse osmosis check valve 9 is arranged on the back washing branch 7 and is positioned between the back washing device 8 and the water outlet end 212; the reverse osmosis check valve 9 is used for forward conduction and reverse throttling.
The reverse osmosis check valve 9 can normally switch on when making water, and plays the effect of throttle when elementary drainage backward extrusion to can enough guarantee that water purifier waterway system can normally carry out the system water work, also can protect RO membrane filter core 4 when backward extrusion, take place the problem of damage owing to receiving the backpressure when avoiding it to wash backward.
Further, the pressure storage device 811 is an elastic bag which divides the backwashing device 8 into a first containing cavity 812 and a second containing cavity 813;
the first chamber 812 is used for accommodating primary filtered water;
the second receiving cavity 813 is used for receiving purified water.
In one embodiment, the backwash assembly 8 is a housing. One end of the shell is communicated with the primary filtering water outlet 112 through a back washing branch 7, the elastic bag is arranged at the other end of the shell, and the elastic bag is communicated with the water outlet end 212. The second volume 813 is actually the inner cavity of the elastomeric bladder. The primary filtered water enters the first volume 812 and the purified water enters the second volume 813, the interior of the elastomeric bladder.
The elastic bag has elasticity, and when the water taking device 6 is opened, the supercharging device 3 pumps the primary filtered water into the RO membrane filter element 4 to make the RO membrane filter element 4 produce water; a part of purified water is discharged through the water taking device 6, and the other part of purified water enters the second cavity 813, and at the moment, the pressure of the purified water is greater than that of primary filtering water; therefore, the purified water makes the elastic bag enlarge and deform, so that the volume of the first cavity 812 becomes smaller, and the primary filtered water is extruded from the back washing branch 7 into the primary filtering branch 2 and enters the RO membrane filter element 4 through the water inlet end 211.
When the water taking device 6 is closed, the pressurizing device 3 continues to pump the primary filtered water into the RO membrane filter element 4, so that the RO membrane filter element 4 continues to produce water, the purified water continues to enter the backwashing device 8, the pressure of one side of the purified water in the backwashing device 8 is greater than that of one side of the primary filtered water, and the purified water continues to extrude the primary filtered water through the pressure storage device 811; the water taking device 6 stops taking water, the backwashing device 8 is gradually filled with purified water, so that the pressure of the water outlet pipe 5 is gradually increased, and when the pressure of the water outlet pipe 5 is greater than the threshold value of the supercharging device 3, the supercharging device 3 is closed; at the moment, the supercharging device 3 stops working, the RO membrane filter element 4 stops water production, so that the pressure of the purified water is gradually reduced, and when the pressure of the purified water is smaller than the water pressure of the primary filtered water, the primary filtered water reversely extrudes the elastic bag, so that the purified water enters the RO membrane filter element 4 from the water outlet end 212, and the RO membrane of the RO membrane filter element 4 is washed; subsequently, purified water is discharged from the waste water end 213.
Furthermore, the backwashing water purifier waterway system further comprises a pressure reducing valve 10, wherein the pressure reducing valve 10 is installed on the backwashing branch 7 and is positioned between the primary filter water outlet 112 and the backwashing device 8.
The pressure reducing valve 10 can refer to the pressure reducing valve of the existing water purifier, and is adjusted through the pressure reducing valve 10, so that the pressure of water flowing into the first accommodating cavity 812 is kept stable, the pressure on one side of the first accommodating cavity 812 is prevented from being high, purified water entering the second accommodating cavity 813 is reduced when the water taking device 6 is opened, and the problem that the waste water cannot be completely discharged due to the fact that the purified water is too little is avoided. And moreover, the problem that the water pressure of primary water filtration is changed due to the change of the water pressure of an external water source can be avoided.
Specifically, the composite filter element 1 comprises a folded PP cotton filter element and a carbon rod filter element; the folding PP cotton filter element is wrapped on the outer side of the carbon rod filter element.
In one embodiment of the present invention, the composite filter element 1 comprises a folded PP cotton filter element and a carbon rod filter element. After entering the composite filter element 1, the external water flow firstly passes through the folded PP cotton filter element and then passes through the carbon rod filter element and then is discharged from the primary filter water outlet 112. The cotton filter core of folding PP plays the effect of filtering aquatic impurity, and the carbon-point filter core has the adsorption effect, can adsorb the impurity in elementary filtration. So set up, reducible impurity that gets into RO membrane filter core 4 to alleviate RO membrane filter core 4's filtration burden, also can prolong the live time of RO membrane simultaneously.
Specifically, the back-flushing water purifier waterway system further comprises a check valve 20, and the check valve 20 is arranged on the water outlet pipe 5.
The check valve 20 may be referred to as a conventional check valve of a water purifier, so that the water flow cannot be reversely returned from the water taking device 6 to the water outlet end 212, and the filtered water of the RO membrane cartridge 4 is prevented from flowing back into the RO membrane cartridge 4 again.
Preferably, the back-flushing water purifier waterway system further comprises a water inlet valve 30 and a high-pressure switch 40;
the water inlet valve 30 is arranged on the primary filtering branch 2 and is positioned between the primary filtering water outlet 112 and the supercharging device 3;
the high-pressure switch 40 is positioned between the check valve 20 and the water taking device 6; the high-pressure switch 40 is electrically connected with the supercharging device 3 and the water inlet valve 30 respectively.
In one embodiment, the water purifier waterway system further includes a water inlet valve 30 and a high pressure switch 40. When the water taking device 6 is closed, the supercharging device 3 continues to work, so that the RO membrane can continue to produce water, the pressure of the water outlet pipe 5 gradually rises, and when the pressure of the water outlet pipe 5 reaches the threshold value of the high-pressure switch 40, the high-pressure switch 40 controls the supercharging device 3 and the water inlet valve 30 to be closed; and the check valve 20 can keep the water outlet pipe 5 between the check valve 20 and the water taking device 6 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 6 is opened, the purified water flows out of the water taking device 6, so that the pressure between the check valve 20 and the water taking device 6 is reduced; when the pressure of the water outlet pipe 5 is lower than the threshold value of the high-pressure switch 40, the high-pressure switch 40 controls the supercharging device 3 and the water inlet valve 30 to be opened, the supercharging device 3 continues to work, and water discharged by the composite filter element 1 is pumped into the RO membrane filter element 4, so that the RO membrane filter element 4 can continue to produce water.
Optionally, the back-flushed water purifier waterway system further comprises a waste pipe 50 and a waste valve 60; one end of the waste water pipe 50 is communicated with the waste water end 213, and the other end is communicated with an external water outlet; the waste valve 60 is installed to the waste pipe 50.
In one embodiment, the waste water end 213 is provided with a waste water pipe 50, and the waste water pipe 50 is used for discharging waste water generated by the RO membrane cartridge 4. When the water pressure of the wastewater in the wastewater pipe 50 is higher than the threshold value of the wastewater valve 60, the wastewater valve 60 is opened, so that the wastewater is discharged to the outside through the wastewater pipe 50; when the pressure of the wastewater in the wastewater pipe 50 is lower than the threshold value of the wastewater valve 60, the wastewater valve 60 is closed, so that the problem that the wastewater pipe 50 is blocked due to the fact that external sundries or insects enter the wastewater pipe 50 from the wastewater pipe 50 is avoided.
The technical principle of the present invention is described above with reference to 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. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive efforts, 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 (8)
1. The utility model provides a water purifier waterway system of back flush which characterized in that: the device comprises a composite filter element, a primary filtering branch, a supercharging device, an RO membrane filter element, a water outlet pipe, a water taking device, a backwashing branch and a backwashing device;
the composite filter element is provided with a raw water inlet and a primary filter water outlet; the RO membrane filter element is provided with a water inlet end, a water outlet end and a wastewater end;
the raw water inlet is communicated with an external water source; the primary filtering water outlet is communicated with the water inlet end through the primary filtering branch;
the primary filtering water outlet is communicated with the water outlet end through the back washing branch;
the other end of the water outlet pipe is communicated with the water outlet end, and the other end of the water outlet pipe is communicated with the water taking device;
the pressure boosting device is arranged on the primary filtering branch;
the back washing device is arranged on the back washing branch; a pressure storage device is arranged in the backwashing device; the primary filter water discharged by the composite filter element and the purified water discharged by the RO membrane filter element respectively enter the backwashing device; the pressure storage device separates primary filtered water from pure water;
when the RO membrane filter element produces water, purified water enters the backwashing device through the water outlet end, and primary filtered water is extruded to the primary filtering branch through the pressure storage device; when the RO membrane filter element stops producing water, primary filtered water reversely extrudes purified water to the water outlet end through the pressure storage device.
2. The backwashing water purifier waterway system of claim 1, wherein: also comprises a reverse osmosis check valve; the reverse osmosis check valve is arranged on the back washing branch and is positioned between the back washing device and the water outlet end; and the reverse osmosis check valve is used for forward conduction and reverse throttling.
3. The backwashing water purifier waterway system of claim 2, wherein: the pressure storage device is an elastic bag which divides the backwashing device into a first containing cavity and a second containing cavity;
the first cavity is used for accommodating primary filtered water;
the second cavity is used for containing purified water.
4. The backwashing water purifier waterway system of claim 2, wherein: the backwashing device is characterized by further comprising a pressure reducing valve, wherein the pressure reducing valve is arranged on the backwashing branch and is positioned between the primary filter water outlet and the backwashing device.
5. The backwashing water purifier waterway system of claim 1, wherein: the composite filter element comprises a folding PP cotton filter element and a carbon rod filter element;
the folding PP cotton filter element is wrapped on the outer side of the carbon rod filter element.
6. The backwashing water purifier waterway system of claim 1, wherein: still include the check valve, the check valve set up in the outlet pipe.
7. The backwash water purifier waterway system of claim 6, wherein: the device also comprises a water inlet valve and a high-pressure switch;
the water inlet valve is arranged on the primary filtering branch and is positioned between the primary filtering water outlet and the supercharging device;
the high-pressure switch is positioned between the check valve and the water taking device; the high-pressure switch is electrically connected with the supercharging device and the water inlet valve respectively.
8. The backwashing water purifier waterway system of claim 1, wherein: the device also comprises a waste water pipe and a waste water valve;
one end of the waste water pipe is communicated with the waste water end, and the other end of the waste water pipe is communicated with an external water outlet;
the waste water valve is mounted on the waste water pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121289981.8U CN214880664U (en) | 2021-06-08 | 2021-06-08 | Water purifier waterway system of back flush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121289981.8U CN214880664U (en) | 2021-06-08 | 2021-06-08 | Water purifier waterway system of back flush |
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| Publication Number | Publication Date |
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| CN214880664U true CN214880664U (en) | 2021-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121289981.8U Active CN214880664U (en) | 2021-06-08 | 2021-06-08 | Water purifier waterway system of back flush |
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| CN (1) | CN214880664U (en) |
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2021
- 2021-06-08 CN CN202121289981.8U patent/CN214880664U/en active Active
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