CN216377522U

CN216377522U - Water purifier

Info

Publication number: CN216377522U
Application number: CN202122656822.3U
Authority: CN
Inventors: 周栋; 张涛; 龚圆杰; 何海; 范婷
Original assignee: Guangdong Chunmi Electrical Technology Co Ltd
Current assignee: Guangdong Chunmi Electrical Technology Co Ltd
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2022-04-26
Anticipated expiration: 2031-11-01

Abstract

The utility model particularly relates to a water purifier which comprises a membrane filter element, a water inlet pipeline and a water outlet pipeline, wherein the membrane filter element is provided with a water inlet interface and a water outlet interface which are respectively connected with the water inlet pipeline and the water outlet pipeline, the water inlet pipeline is provided with a booster pump, the water outlet pipeline comprises two branch flow branches, namely a drinking water branch and a backflow branch, a pressure release valve is arranged on the backflow branch, the backflow branch is communicated with the water inlet pipeline, the pressure release valve is provided with a threshold value, when the water pressure is higher than the threshold value, tap water enters the membrane filter element through the water inlet pipeline, the filtered water flows out through the drinking water branch of the water outlet pipeline, and the water enters the backflow branch in a pressure release state and flows back to the water inlet pipeline. The utility model solves the problems that the pressure loss of the existing drinking water branch pipeline is large and the drinking water can be shunted to the backflow branch, adopts the pressure release valve and sets a certain threshold value, and the pressure release valve has the pressure release function and the non-return function, thereby ensuring the stable water outlet of the drinking water branch and optimizing the experience of drinking water taking of a user.

Description

Water purifier

Technical Field

The utility model relates to the technical field of water treatment devices, in particular to a water purifier.

Background

Along with the improvement of people's standard of living, people are more and more paying attention to quality of water health, the family is equipped with water purification unit and has become a trend, current water purification unit often divide into under the kitchen water purifier and mesa water purification drink machine, wherein partial water purifier is in reasonable scope in order to ensure the dissolubility total solid of first cup of water, the pure water bubble membrane method has been adopted, the backward flow branch road has been set up, however, this prior art has certain defect, in the water purifier that has the backward flow branch road promptly, if drinking water branch road pipeline pressure loss is big, the drinking water can shunt the backward flow branch road, cause drinking water branch road to go out the water unstability, can't ensure the experience sense of user's drinking water intaking.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a water purifier, which is used for solving the problem that in the prior art, the pressure loss of a drinking water branch pipeline is large, and drinking water can be shunted to a return branch.

In order to achieve one or part or all of the purposes or other purposes, the utility model provides a water purifier, which comprises a membrane filter element, a water inlet pipeline and a water outlet pipeline, wherein the membrane filter element is provided with a water inlet connector and a water outlet connector which are respectively connected with the water inlet pipeline and the water outlet pipeline, the water inlet pipeline is provided with a booster pump, the water outlet pipeline comprises two branch flow branches, namely a drinking water branch and a backflow branch, the backflow branch is provided with a relief valve, the backflow branch is communicated with the water inlet pipeline, the relief valve is provided with a threshold value, when the water pressure is higher than the threshold value, tap water enters the membrane filter element through the water inlet pipeline, the filtered water flows out through the drinking water branch of the water outlet pipeline, and the water enters the backflow branch in a pressure relief state and flows back to the water inlet pipeline.

Further, the water purifier includes water storage equipment, and the backward flow branch road communicates to water storage equipment, is equipped with a branch point on the outlet pipeline, and drinking water branch road and backward flow branch road are from branch point department branch, and the relief valve is installed on the backward flow branch road between water storage equipment and branch point. Further, the water inlet pipeline comprises a first water inlet pipeline and a second water inlet pipeline, a backwater interface and a tap water interface are arranged on the water storage device, the first water inlet pipeline is connected with the tap water interface and used for connecting tap water, the second water inlet pipeline is communicated with the water storage device and the membrane filter element and used for supplying water to the membrane filter element from the water storage device, and the backwater interface is connected with a backflow branch.

Furthermore, a pressure reducing valve is arranged on the first water inlet pipeline, and a first TDS sensor and a first electromagnetic valve are arranged on a second water inlet pipeline between the water storage device and the booster pump.

Further, the water storage equipment is a front-mounted water adding and driving tank composite filter element.

Furthermore, the backflow branch is provided with a branch which is a pure water backflow pipeline, a fourth electromagnetic valve and a check valve are installed on the pure water backflow pipeline, and the pure water backflow pipeline is connected with the booster pump.

Furthermore, the drinking water branch comprises a cold water outlet branch, and a second electromagnetic valve is arranged on the cold water outlet branch.

Furthermore, the drinking water branch comprises a hot water outlet branch connected with an instant heating body, and a zero-pressure pump and a third electromagnetic valve are arranged on the hot water outlet branch.

Furthermore, a high-voltage switch is arranged on the backflow branch.

Furthermore, the water purifier includes the waste water pipeline, is equipped with the waste water interface on the membrane filter core and is connected with the waste water pipeline, and the waste water that filters the production discharges through the waste water pipeline.

The embodiment of the utility model has the following beneficial effects:

the problem of drinking water branch road pipeline pressure loss among the prior art is big, drinking water can shunt to the backward flow branch road is solved. According to the utility model, the pressure release valve is arranged on the backflow branch and is provided with a certain threshold, and when the water pressure is higher than the threshold, the pressure release valve can be opened and water flows through the pressure release valve, so that the pressure release valve has the pressure release function and the non-return function, the drinking water branch is ensured to have stable water outlet, and the experience of drinking water taking of a user is optimized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Wherein:

FIG. 1 is a schematic view of a water circuit of a water purifier according to a first embodiment;

fig. 2 is a schematic view of a water path of the water purifier in the second embodiment.

The reference numerals are explained below: a-a membrane cartridge; b-a water storage device; a water drive composite filter element is arranged in front; c-instant heating body; 1-a water inlet pipeline; 11-a first water inlet line; 111-a pressure relief valve; 12-a second water inlet line; 121-a first TDS sensor; 122-a first solenoid valve; 123-a booster pump; 2-water outlet pipeline; 21-drinking water branch; 211-cold water outlet branch; 2111-a second solenoid valve; 212-hot water outlet branch; 2121-zero pressure pump; 2122-a third solenoid valve; 22-reflux branch; 222-a pressure relief valve; 223-a high voltage switch; 224-a fourth solenoid valve; 23-a branch point; 3-a waste water pipeline; 31-concentrated water electromagnetic valve; 4-a pure water return pipeline.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, a water purifier according to a first embodiment of the present invention includes a membrane filter element a, a water inlet pipeline 1 and a water outlet pipeline 2, the membrane filter element a is provided with a water inlet interface and a water outlet interface, which are respectively connected to the water inlet pipeline 1 and the water outlet pipeline 2, the water inlet pipeline 1 is provided with a booster pump 123, the water outlet pipeline 2 includes two branch branches, which are respectively a drinking water branch 21 and a return branch 22, the return branch 22 is provided with a relief valve 222, the return branch 22 is communicated with the water inlet pipeline 1, the relief valve 222 is provided with a threshold value, and when the water pressure is higher than the threshold value, the relief valve 222 is opened, so as to solve the problem that the pressure loss of the drinking water branch pipeline is large and the drinking water can be diverted to the return branch in the prior art, ensure that the drinking water branch can be discharged stably, and optimize the experience of drinking water intake of a user. Relief valve 222 have check valve's function, still possess the pressure release function simultaneously, relief valve 222 can just open and let rivers flow through relief valve 222 under certain forward water pressure promptly, drinking water branch 21 backpressure is great relatively when system water, relief valve 222 water inlet discharge pressure promptly, when pressure is no longer than the relief valve cracking pressure, the drinking water just can not shunt to backward flow branch 22, avoids the drinking water flow undersize. Tap water enters the membrane filter element A through the water inlet pipeline 1, filtered water flows out through the drinking water branch 21 of the water outlet pipeline 2, the drained water in a pressure relief state enters the backflow branch 22 and flows back to the water inlet pipeline 1, and the backflow branch 22 can flow back to the membrane filter element A through at least one path of water storage equipment and a pure water backflow pipeline. Preferably, the membrane filter element A is an RO membrane filter element and is used for improving the taste of drinking water, intercepting microorganisms and the like.

As shown in fig. 2, in another embodiment, the water purifier further includes a water storage device B, the water storage device B can be a water tank, a water drive tank, etc., preferably, the water storage device B employs a water drive tank composite filter element, in order to solve the problem of high TDS of the first cup of water of the water purifier, a pure water bubble membrane technology can be employed, the water tank needs to be separately provided in the water purifier, the water drive tank, an independent water tank, the water drive tank can occupy the internal space of the water purifier, the overall size of the water purifier is large, the installation of other household appliances in the water tank cabinet is influenced, the use of the water drive tank composite filter element can avoid increasing an independent pure water tank or the water drive tank and increase the floor area, the preposed water drive tank filter element integrates the water drive tank into the preposed filter element. The return branch 22 is communicated to the water storage device B, the drinking water branch 21 and the return branch 22 branch from the branch point 23, and the pressure relief valve 222 is installed on the return branch 22 between the water storage device B and the branch point 23. Preferably, a high-voltage switch 222 can be installed on the return branch 22 and at the rear end of the pressure release valve 222, the high-voltage switch 222 is used for closing the high-voltage switch 222 when the water storage device B is full of water and cutting off the power supply to stop the operation of the water purifier, when the water storage device B is full of water, the pressure is reduced, the high-voltage switch 222 is opened, the water purifier is started, the pressure value is called as an open value, and the high-voltage switch 222 is an open value and a closed value for the water storage device B, namely a peak value and a valley value for protecting a water path of the water purifier. Preferably, the outlet line 2 is provided with a non-return valve between the branch point 23 and the membrane cartridge a.

As shown in fig. 2, in the second embodiment, the water inlet pipeline 1 includes a first water inlet pipeline 11 and a second water inlet pipeline 12, a return water interface and a tap water interface are provided on the water storage device B, the first water inlet pipeline 11 is connected with the tap water interface for connecting tap water, the second water inlet pipeline 12 is communicated with the water storage device B and the membrane filter element a for supplying water from the water storage device B to the membrane filter element a, and the return water interface is connected with the return branch 22. Tap water enters the water storage device B through the first water inlet pipeline 11, is pumped into the second water inlet pipeline 12 by the booster pump 123 and is pumped to the membrane filter element A for filtration. Further, a pressure reducing valve 111 is arranged on the first water inlet pipeline 11, and a first TDS sensor 121 and a first solenoid valve 122 are arranged on the second water inlet pipeline 12 between the water storage device B and the booster pump 123. The first TDS sensor is used to measure total dissolved solids of the water body. Adopt relief pressure valve 111 at the running water end of intaking for the restriction pressure of intaking avoids appearing running water pressure too high, influences the operation of water drive jar, and the in-process that water drive jar made full water, the too big problem that influences system water efficiency of backpressure.

As shown in fig. 2, in the second embodiment, the water outlet pipeline 2 has two branches, one branch is communicated with the water storage device B, the other branch is a pure water return pipeline 4, a fourth electromagnetic valve 224 and a check valve are installed on the pure water return pipeline 4, and the pure water return pipeline 4 is connected with the booster pump 123.

Preferably, the drinking water branch 21 may include a plurality of branches providing different temperatures, giving more choices to the user, as shown in fig. 2, and in the second embodiment, the drinking water branch 21 includes a hot water outlet branch 212 and a cold water outlet branch 211. The hot water outlet branch 212 is connected with an instant heating element C, and a zero pressure pump 2121 and a third electromagnetic valve 2122 are arranged on the hot water outlet branch 212. The filtered drinking water enters the hot water outlet branch 212 and is heated by the instant heating element C to generate hot water. The zero pressure pump 2121 is used for stably conveying water to the instant heating element C under different water inlet flow rates. The zero-pressure pump 2121 comprises a zero-pressure mechanism and a diaphragm pump mechanism, and the zero-pressure mechanism is characterized in that the diaphragm pump mechanism is started to generate negative pressure, a water inlet channel of the zero-pressure mechanism is opened, the zero-pressure pump can normally deliver water, and when the diaphragm pump mechanism is closed, the zero-pressure mechanism can cut off water inlet. The cold water outlet branch 211 is provided with a second electromagnetic valve 2111, and the cold water outlet branch 211 is connected in parallel with the hot water outlet branch 212. Preferably, a flow meter and a TDS sensor may be installed on the drinking water branch 21, so as to detect the flow rate and the quality of the drinking water.

Referring to fig. 1 and 2, the water purifier further includes a waste water pipeline 3, a corresponding waste water port is disposed on the membrane filter element a and connected to the waste water pipeline 3, and waste water generated by filtering tap water through the membrane filter element a is discharged through the waste water pipeline 3. As the preferred scheme, set up a plurality of dense water solenoid valves 4 and/or waste water ratio on the waste water pipeline 3, or adopt the waste water than adjustable solenoid valve, realize the function of regulation and control pure waste water ratio, can be according to the running water condition of difference in reality well balance water conservation, protection membrane filter core A and extension membrane filter core A's life.

As shown in fig. 2, in the water purifier of the second embodiment, four operation modes including a water preparation mode, a normal temperature water taking mode, a hot water taking mode, and a pure water bubble film mode are available in use.

Under the system water mode, first solenoid valve 122 can be opened to the water purifier, booster pump 42 and relief pressure valve 111, external running water gets into the back from first inlet channel 11, flow toward water drive a jar combined filter core, it filters the colored magazine of large granule impurity and part in aquatic to drive a jar combined filter core through water, can effectively avoid impurity in the water to damage first solenoid valve 122 of rear end, booster pump 123 and membrane filter core A, later the water is gone into second inlet channel 12 by booster pump 123 pump and flows toward the concentrated water side of RO membrane filter core, produce drinking water and waste water after reverse osmosis membrane filters, the drinking water is flowed out by outlet conduit 2, waste water gets into waste water pipeline 3 and is discharged external after being throttled by concentrated water solenoid valve 31.

In the normal temperature water taking mode, the water purifier opens the first electromagnetic valve 122, the booster pump 123 and the third electromagnetic valve 2122, the RO membrane filter element produces water normally, and pure water produced by the RO membrane filter element enters the cold water outlet branch 211 of the drinking water branch 21 and is conveyed to the normal temperature water outlet of the faucet to flow out.

In the hot water taking mode, the water purifier opens the first electromagnetic valve 122, the booster pump 123 and the third electromagnetic valve 2122, the RO membrane filter element normally produces water, pure water produced by the RO membrane filter element enters the hot water outlet branch 212 of the drinking water branch 21 and is conveyed to the instant heating element C through the zero pressure pump 2121, and the water body flows out from the hot water port of the intelligent faucet after being heated to the water taking temperature. In the embodiment, redundant pure water for preparing hot water flows back into the composite filter element of the water drive tank for storage; when the water drive tank composite filter element is full of water, but hot water is still taken, and the RO membrane filter element is still producing water, the fourth electromagnetic valve 224 is opened, and redundant pure water is returned before being conveyed to the booster pump 123.

Under pure water bubble membrane mode, first solenoid valve 122, second solenoid valve 2111, third solenoid valve 2122 all closes, fourth solenoid valve 224, booster pump 123 opens, thick water solenoid valve 31 on the waste water pipeline 3 all opens simultaneously, the deposit water of water drive jar composite filter core gets into second inlet channel 12 and is defeated to membrane filter core A by booster pump 123, get into the thick water side of RO membrane, replace the thick water of the high TDS behind the thick water normal system water of RO membrane, therefore, can replace the thick water before the RO membrane when the water purifier does not use system water for a long time, prevent that the salt ion before this RO membrane from passing RO membrane and permeating to the pure water side, avoid the higher condition of first cup of water TDS to appear after the water purification system is static for a period of time, experience further optimization to the user's drinking water of water purifier.

In conclusion, the utility model can effectively solve the problems that the pressure loss of the drinking water branch pipeline is large and the drinking water can be shunted to the return branch in the prior art. According to the utility model, the pressure release valve is arranged on the backflow branch and is provided with a certain threshold, and when the water pressure is higher than the threshold, the pressure release valve can be opened and water flows through the pressure release valve, so that the pressure release valve has the pressure release function and the non-return function, the stable water outlet of the drinking water branch is ensured, and the experience of drinking water taking of a user is optimized; meanwhile, a cold and hot water outlet mode is set for the user to select; by adopting a pure water bubble membrane method, salt ions in front of the RO membrane are prevented from penetrating to a pure water end through the RO membrane, and the condition that the TDS of the first cup of water is high is avoided; the system adopts to be integrated into a water drive jar composite filter core with water drive jar and leading filter core, sets up the problem that water drive jar increases the volume alone when having solved water purifier pure water bubble membrane and water demand.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the utility model is not limited by the scope of the appended claims.

Claims

1. A water purifier is characterized in that: comprises a membrane filter element (A), a water inlet pipeline (1) and a water outlet pipeline (2), wherein the membrane filter element (A) is provided with a water inlet connector and a water outlet connector which are respectively connected with the water inlet pipeline (1) and the water outlet pipeline (2), the water inlet pipeline (1) is provided with a booster pump (123), the water outlet pipeline (2) comprises two branch branches which are respectively a drinking water branch (21) and a reflux branch (22), the reflux branch (22) is provided with a pressure relief valve (222), the reflux branch (22) is communicated with the water inlet pipeline (1), the pressure relief valve (222) is provided with a threshold value, when the water pressure is higher than the threshold value, the pressure release valve (222) is opened, tap water enters the membrane filter element (A) through the water inlet pipeline (1), the filtered water flows out through the drinking water branch (21) of the water outlet pipeline (2), and the drained water enters the backflow branch (22) in the pressure release state and flows back to the water inlet pipeline (1).

2. The water purifier according to claim 1, wherein: the water purifier comprises a water storage device (B), a backflow branch (22) is communicated to the water storage device (B), a branch point (23) is arranged on the water outlet pipeline (2), the drinking water branch (21) and the backflow branch (22) are branched from the branch point (23), and a pressure release valve (222) is installed on the backflow branch (22) between the water storage device (B) and the branch point (23).

3. The water purifier according to claim 2, wherein: the water inlet pipeline (1) comprises a first water inlet pipeline (11) and a second water inlet pipeline (12), a backwater interface and a tap water interface are arranged on the water storage equipment (B), the first water inlet pipeline (11) is connected with the tap water interface and used for connecting tap water, the second water inlet pipeline (12) is communicated with the water storage equipment (B) and the membrane filter element (A) and used for supplying water to the membrane filter element (A) from the water storage equipment (B), and the backwater interface is connected with the backflow branch (22).

4. The water purifier according to claim 3, wherein: be equipped with relief pressure valve (111) on first inlet line (11), be equipped with first TDS sensor (121) and first solenoid valve (122) on second inlet line (12) between water storage equipment (B) and booster pump (123).

5. The water purifier according to claim 2, wherein: the water storage equipment (B) is a water drive tank composite filter element.

6. The water purifier according to any one of claims 1 to 5, wherein: the backflow branch (22) is provided with a branch and is a pure water backflow pipeline (4), a fourth electromagnetic valve (224) and a check valve are installed on the pure water backflow pipeline (4), and the pure water backflow pipeline (4) is connected with the booster pump (123).

7. The water purifier according to claim 1, wherein: the drinking water branch (21) comprises a cold water outlet branch (211), and a second electromagnetic valve (2111) is arranged on the cold water outlet branch (211).

8. The water purifier according to any one of claims 1 to 5 and 7, wherein: the drinking water branch (21) comprises a hot water outlet branch (212) which is connected with an instant heating body (C), and a zero pressure pump (2121) and a third electromagnetic valve (2122) are arranged on the hot water outlet branch (212).

9. The water purifier according to claim 1, wherein: and a high-voltage switch (223) is arranged on the backflow branch (22).

10. The water purifier according to claim 1, wherein: the water purifier comprises a waste water pipeline (3), a waste water interface is arranged on the membrane filter element (A) and connected with the waste water pipeline (3), and waste water generated by filtration is discharged through the waste water pipeline (3).