CN218709432U - Water purifier - Google Patents

Abstract

The utility model relates to a purifier technical field specifically provides a purifier, aims at solving current purifier and in long-term use its inside bacterium that can multiply of pipeline and lead to the uncomfortable problem to appear after the user drinks water. Mesh for this reason, the utility model discloses a water purifier includes the water treatment pipeline, and the low reaches end of water treatment pipeline is connected with water supply installation, and the upper reaches end of water treatment pipeline is connected to the water source, and it has filter equipment and sterilizing equipment to establish ties on the water treatment pipeline, and sterilizing equipment includes the casing, and the both ends of casing are equipped with water inlet and delivery port respectively, are equipped with electrolysis subassembly in the casing, and electrolysis subassembly includes anode plate, proton exchange membrane and the negative plate that sets gradually along the rivers direction, and the anode plate is diamond electrode. Water is electrolyzed at the anode plate to generate a large amount of hydroxyl, and the hydroxyl is used for oxidizing and decomposing bacteria, organic matters and the like in water flow, so that the pipeline of the water purifier is sterilized, and the safety of drinking water is ensured.

Description

Water purifier

Technical Field

The utility model relates to a purifier technical field specifically provides a purifier.

Background

Along with the continuous improvement of the life quality of people, people pay more attention to drinking safety, and the water purifier becomes a stock appliance in more and more families.

The water purifier is provided with the filter element in the pipeline, and water is filtered by the filter element and then is supplied to a user for drinking. However, in the long-term use process, the inside of the pipeline is not free from bacteria breeding, which is easy to cause discomfort after drinking water.

Therefore, there is a need in the art for a new solution to the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the technical problem, solve current purifier promptly and its inside bacterium that can multiply of pipeline in long-term use leads to the uncomfortable problem to appear after the user drinks water.

The utility model provides a water purifier, the water purifier includes the water treatment pipeline, the low reaches end and the water supply installation of water treatment pipeline are connected, the upper reaches end of water treatment pipeline is connected to the water source, it has filter equipment and sterilizing equipment to establish ties on the water treatment pipeline, sterilizing equipment includes the casing, the both ends of casing are equipped with water inlet and delivery port respectively, be equipped with the electrolysis subassembly in the casing, the electrolysis subassembly includes anode plate, proton exchange membrane and the negative plate that sets gradually along the rivers direction, the anode plate is diamond electrode.

In the preferable technical scheme of the water purifier, the cathode plate is a diamond electrode.

In the preferable technical scheme of the water purifier, the anode plate is provided with a first water through hole, the proton exchange membrane is provided with a second water through hole coaxial with the first water through hole, and the first water through hole is smaller than the second water through hole.

In the preferable technical scheme of the water purifier, an elastic part is further arranged in the shell, and two ends of the elastic part are respectively abutted against the cathode plate and the inner wall of the shell.

In the preferable technical scheme of the water purifier, a water diversion plate is arranged between the water inlet and the anode plate, and a third water passing hole coaxial with the first water passing hole is formed in the water diversion plate.

In the preferred technical scheme of above-mentioned purifier, filter equipment includes the reverse osmosis filter core, the import and the pure water outlet of reverse osmosis filter core are established ties on the water treatment pipeline, set up the waste water ratio solenoid valve on the waste pipe of reverse osmosis filter core, sterilizing equipment sets up the import of reverse osmosis filter core with between the water source, the import of reverse osmosis filter core with still be provided with the booster pump between the water source.

In the preferred technical scheme of above-mentioned purifier, water supply installation is tap, tap with be provided with high-pressure switch between the pure water outlet of reverse osmosis filter core, the booster pump sterilizing equipment with high-pressure switch with the automatically controlled board communication connection of purifier.

In the preferred technical scheme of above-mentioned purifier, sterilizing equipment sets up the upstream side of booster pump, sterilizing equipment with along water flow direction set gradually three-way reversing valve and preliminary treatment filter core between the booster pump, the import and the first export of three-way reversing valve respectively with sterilizing equipment's delivery port with the access connection of preliminary treatment filter core, the second export of three-way reversing valve is connected to through the bypass pipe the preliminary treatment filter core with pipeline between the booster pump, three-way reversing valve with the automatically controlled board communication connection of purifier.

In the preferred technical scheme of above-mentioned purifier, filter equipment includes the reverse osmosis filter core, the import and the pure water outlet of reverse osmosis filter core are established ties on the water treatment pipeline, set up the waste water ratio solenoid valve on the waste water pipe of reverse osmosis filter core, the pure water outlet of reverse osmosis filter core with be provided with the pure water case between the water supply installation, sterilizing equipment sets up the upstream side of pure water case, the pure water case is connected to through the wet return the pipeline in sterilizing equipment upper reaches, be provided with the circulating pump on the wet return.

In the above preferred embodiment of the water purifier, the sterilization device is disposed between the pure water outlet of the reverse osmosis filter element and the pure water tank.

Under the condition of adopting the technical scheme, water provided by the water source flows through the sterilizing device along the water treatment pipeline of the water purifier, under the condition that the anode plate and the cathode plate of the electrolysis assembly are electrified, part of water is electrolyzed at the anode plate to generate a large amount of hydroxyl, and the hydroxyl oxidizes and decomposes bacteria, organic matters and the like in water flow, so that the pipeline of the water purifier is sterilized, and the drinking water safety is ensured.

Preferably, the anode plate is provided with a first water through hole, the proton exchange membrane is provided with a second water through hole coaxial with the first water through hole, and the first water through hole is smaller than the second water through hole. Through such setting, some water forms the impact to the negative plate after passing first water hole and the second water hole of crossing, thereby make and form the clearance between negative plate and the proton exchange membrane, under the reaction force of negative plate, impact to the part backward flow of the rivers of negative plate and pass the part near the first water hole periphery of crossing of positive plate after the second water hole of crossing, thereby make and form the clearance between positive plate and the proton exchange membrane, water can flow from the clearance between proton exchange membrane and positive plate and the negative plate, heat dispersion is better, and avoid proton exchange membrane to hug closely positive plate and negative plate always and the condition emergence of being burnt.

Preferably, the shell is also internally provided with an elastic piece, and two ends of the elastic piece are respectively abutted against the cathode plate and the inner wall of the shell. Receive from the first water hole of crossing and the second when crossing the impact force of the rivers that the water hole passed at the negative plate, the negative plate receives the impact force and takes place to remove to the direction of elastic component, and meanwhile the negative plate still receives the elasticity of elastic component, consequently, under the effect of rivers and elastic component, the negative plate is in the micro oscillation state always, can avoid the incrustation scale to pile up on its surface, and the clearance that forms between positive plate and the proton exchange membrane also is favorable to the incrustation scale to discharge, has improved the life of electrode slice.

Preferably, a water distribution plate is arranged between the water inlet and the anode plate, and a third water passing hole coaxial with the first water passing hole is arranged on the water distribution plate. The water flow entering from the water inlet is divided by the third water passing holes and flows to the first water passing holes of the anode plate in order, so that the electrolysis efficiency is improved.

Preferably, the filtering device comprises a reverse osmosis filter element, an inlet of the reverse osmosis filter element and a pure water outlet are connected in series on a water treatment pipeline, a wastewater ratio electromagnetic valve is arranged on a wastewater pipe of the reverse osmosis filter element, the sterilizing device is arranged between the inlet of the reverse osmosis filter element and a water source, and a booster pump is further arranged between the inlet of the reverse osmosis filter element and the water source. When the sterilization treatment is carried out, the water supply device does not supply water, the wastewater ratio electromagnetic valve is opened, the sterilization device is electrified to work, and water flow provided by the water source enters the reverse osmosis filter element after passing through the sterilization device and is finally discharged from the wastewater pipe of the reverse osmosis filter element. Therefore, the hydroxyl generated by the sterilization device flows through the reverse osmosis filter element along with water flow, sterilizes the inside of the reverse osmosis filter element and then is discharged from the waste water pipe.

Preferably, the water supply device is a water faucet, a high-pressure switch is arranged between the water faucet and a pure water outlet of the reverse osmosis filter element, and the booster pump, the sterilization device and the high-pressure switch are in communication connection with an electric control board of the water purifier. Through such setting, when high voltage switch detected that water pressure is greater than the setting value, automatically controlled board just controlled sterilizing equipment work to control waste water ratio solenoid valve is opened, makes the rivers that the water source provided get into the reverse osmosis filter core behind the sterilizing equipment, and the final waste pipe from the reverse osmosis filter core discharges, avoids carrying out sterilization treatment's the condition when the tap water receiving and takes place.

Drawings

Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of a water purifier according to a first embodiment of the present invention;

fig. 2 is a sectional view of a sterilization device in a water purifier according to a first embodiment of the present invention;

fig. 3 is a schematic structural view of a water purifier according to a second embodiment of the present invention;

fig. 4 is a schematic structural diagram of a water purifier according to a third embodiment of the present invention;

fig. 5 is a schematic structural view of a water purifier according to a fourth embodiment of the present invention.

List of reference numerals:

11. a water inlet electromagnetic valve; 12. a high voltage switch; 13. a wastewater ratio electromagnetic valve; 14. a first three-way directional valve; 141. a bypass pipe; 15. a second three-way directional valve; 16. a hot water valve; 17. a cold water valve; 21. pretreating a filter element; 22. a reverse osmosis filter element; 221. a waste pipe; 31. a booster pump; 32. a circulation pump; 4. a sterilizing device; 41. a housing; 411. a water inlet; 412. a water outlet; 42. an anode plate; 421. a first water through hole; 43. a proton exchange membrane; 431. a second water through hole; 44. a cathode plate; 45. a spring; 46. a water diversion plate; 461. a third water through hole; 471. a first elastic cord; 472. a second elastic cord; 5. a faucet; 61. a raw water tank; 62. a pure water tank; 621. a liquid level sensor; 7. a return pipe; 81. heating the liner; 82. and (5) cooling the liner.

Detailed Description

First, it should be understood by those skilled in the art that the embodiments described below are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "left", "right", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" should be interpreted broadly, e.g. as a fixed connection, a detachable connection, or an integral connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The utility model provides a water purifier, water purifier include the water treatment pipeline, the low reaches end and the water supply installation of water treatment pipeline are connected, the upper reaches end of water treatment pipeline is connected to the water source, it has filter equipment and sterilizing equipment to establish ties on the water treatment pipeline, sterilizing equipment includes the casing, the both ends of casing are equipped with water inlet and delivery port respectively, be equipped with the electrolysis subassembly in the casing, the electrolysis subassembly includes the anode plate that sets gradually along the rivers direction, proton exchange membrane and cathode plate, the anode plate is diamond electrode. Water provided by the water source flows through the sterilizing device along the water treatment pipeline of the water purifier, under the condition that the anode plate and the cathode plate of the electrolysis assembly are electrified, part of water is electrolyzed at the anode plate to generate a large amount of hydroxyl, and the hydroxyl oxidizes and decomposes bacteria, organic matters and the like in water flow, so that the pipeline of the water purifier is sterilized, and the drinking water safety is ensured.

The present invention will be described with reference to fig. 1 to 5. Wherein, fig. 1 is a schematic structural view of a water purifier according to a first embodiment of the present invention; FIG. 2 is a sectional view of a sterilization device in a water purifier according to a first embodiment of the present invention; fig. 3 is a schematic structural diagram of a water purifier according to a second embodiment of the present invention; fig. 4 is a schematic structural diagram of a water purifier according to a third embodiment of the present invention; fig. 5 is a schematic structural diagram of a water purifier according to a fourth embodiment of the present invention.

In the first embodiment of the present invention, as shown in fig. 1, the water purifier includes a water treatment pipeline, a water inlet solenoid valve 11, a pretreatment filter element 21, a booster pump 31, a sterilization device 4, a reverse osmosis filter element 22 and a high-voltage switch 12 are sequentially disposed on the water treatment pipeline along a water flow direction, a wastewater ratio solenoid valve 13 is disposed on a wastewater pipe 221 of the reverse osmosis filter element 22, an upstream end of the water treatment pipeline is connected to a tap water pipe (not shown in the figure) as a water source, and a downstream end of the water treatment pipeline is connected to a tap 5 as a water supply device. The water inlet electromagnetic valve 11, the booster pump 31, the sterilization device 4, the high-pressure switch 12 and the wastewater ratio electromagnetic valve 13 are in communication connection with a main control board (not shown in the figure) of the water purifier.

As shown in fig. 2, the sterilization apparatus 4 includes a housing 41, a water inlet 411 and a water outlet 412 are respectively disposed at left and right ends of the housing 41, an electrolysis assembly is disposed in the housing 41, the electrolysis assembly includes an anode plate 42, a proton exchange membrane 43 and a cathode plate 44 sequentially disposed from left to right, an edge of the anode plate 42 is connected with an inner wall of the housing 41 through a first elastic rope 471, an edge of the cathode plate 44 is connected with an inner wall of the housing 41 through a second elastic rope 472, the proton exchange membrane 43 is sandwiched between the two, and both the anode plate 42 and the cathode plate 44 are diamond electrodes. The anode plate 42 is provided with a plurality of first water through holes 421, the proton exchange membrane 43 is provided with a second water through hole 431 coaxial with the first water through holes 421, and the first water through holes 421 are smaller than the second water through holes 431. A spring 45 as an elastic member is further provided in the case 41, and both ends of the spring 45 are respectively abutted against the cathode plate 44 and the inner wall of the case 41. A water diversion plate 46 is further disposed between the water inlet 411 and the anode plate 42 in the housing 41, and a third water passing hole 461 coaxial with the first water passing hole 421 is disposed on the water diversion plate 46.

When normal water making work is carried out, the water faucet 5 is opened, the main control board controls the water inlet electromagnetic valve 11 and the wastewater ratio electromagnetic valve 13 to be opened, the booster pump 31 is controlled to work, and the sterilizing device 4 does not work. Tap water sequentially flows through the water inlet electromagnetic valve 11, the pretreatment filter element 21, the booster pump 31, the sterilization device 4 and the reverse osmosis filter element 22, water entering the reverse osmosis filter element 22 is filtered to generate pure water and concentrated water, the pure water flows through the high-pressure switch 12 from a pure water port of the reverse osmosis filter element 22 and then is discharged from the water faucet 5, and the concentrated water is discharged through the waste water pipe 221.

When sterilization is performed, the water tap 5 is closed, the main control board controls the water inlet electromagnetic valve 11 and the wastewater ratio electromagnetic valve 13 to be opened, and controls the operation of the booster pump 31 and the operation of the sterilization device 4. Tap water sequentially flows through the water inlet electromagnetic valve 11, the pretreatment filter element 21, the booster pump 31, the sterilization device 4 and the reverse osmosis filter element 22, and is finally discharged through the waste water pipe 221.

The water that gets into from the water inlet 411 of sterilizing equipment 4 flows to anode plate 42 after passing third water hole 461 on the board 46 that divides, partly water forms the impact to the negative plate 44 after passing first water hole 421 on the anode plate 42 and the second water hole 431 on the proton exchange membrane 43, negative plate 44 moves a little right, thereby make and form the clearance between negative plate 44 and the proton exchange membrane 43, meanwhile the negative plate 44 receives the elasticity of spring 45 and takes place a little displacement left, under rivers and the effect of spring 45, negative plate 44 is in the micro-oscillation state always, can avoid the incrustation scale to pile up on its surface. Under the reaction force of the cathode plate 44, a part of the water flow impacting the cathode plate 44 reversely flows back through the second water passing holes 431 and impacts a part near the outer periphery of the first water passing holes 421 of the anode plate 42, so that a gap is formed between the anode plate 42 and the proton exchange membrane 43. The water can flow from the clearance between the proton exchange membrane 43 and the anode plate 42 and the cathode plate 44, the heat dissipation performance is good, and the condition that the proton exchange membrane 43 is always attached to the anode plate 42 and the cathode plate 44 and is burnt is avoided. Water is electrolyzed at the anode plate to generate a large amount of hydroxyl, and the hydroxyl oxidizes and decomposes bacteria, organic matters and the like in water flow, thereby playing a role in sterilization.

Through the arrangement of the water dividing plate 46 and the third water passing holes 461 thereon, the water flow entering from the water inlet is divided by the third water passing holes 461 and flows to the first water passing holes 421 of the anode plate 42 in order, and the electrolysis efficiency is improved. It should be noted that this is only a preferable arrangement, and the water diversion plate 46 may not be provided in practical applications. The arrangement of the spring 45 is also a preferred arrangement, and in a possible arrangement the spring 45 may not be provided. In addition, the anode plate 42 is provided with a plurality of first water through holes 421, the proton exchange membrane 43 is provided with a second water through hole 431 coaxial with the first water through holes 421, and the first water through holes 421 are smaller than the second water through holes 431, which is a preferable arrangement mode, in a feasible arrangement mode, the anode plate 42 is not provided with the first water through holes 421, and the proton exchange membrane 43 is not provided with the second water through holes 431. In addition, the cathode plate 44 is a diamond electrode, which is also a preferred arrangement, and in one possible arrangement, the cathode plate 33 may be a stainless steel electrode.

It should be noted that the sterilization device 4 may be disposed between the pretreatment cartridge 21 and the booster pump 31 or between the water inlet solenoid valve 11 and the pretreatment cartridge 21.

In a second embodiment of the present invention, as shown in fig. 2, the water purifier includes a water treatment pipeline, and the water treatment pipeline is sequentially provided with a water inlet solenoid valve 11, a sterilization device 4, a first three-way directional valve 14, a pretreatment filter element 21, a booster pump 31, a reverse osmosis filter element 22, and a high-voltage switch 12 along a water flow direction. An inlet and a first outlet of the first three-way reversing valve 14 are respectively connected with a water outlet of the sterilizing device 4 and an inlet of the pretreatment filter element 21, and a second outlet of the first three-way reversing valve 14 is connected to a pipeline between the pretreatment filter element 21 and the booster pump 31 through a bypass pipe 141. The waste water pipe 221 of the reverse osmosis filter element 22 is provided with a waste water ratio solenoid valve 13, the upstream end of the water treatment line is connected with a tap water pipe (not shown) as a water source, and the downstream end of the water treatment line is connected to a water tap 5 as a water supply device. The water inlet electromagnetic valve 11, the sterilizing device 4, the first three-way reversing valve 14, the booster pump 31, the high-pressure switch 12 and the wastewater ratio electromagnetic valve 13 are in communication connection with a main control board (not shown in the figure) of the water purifier. The specific structure of the sterilization device 4 is as described in the first embodiment, and is not described herein again.

When normal water production works, the water tap 5 is opened, the main control board controls the water inlet electromagnetic valve 11 and the wastewater ratio electromagnetic valve 13 to be opened, the first three-way reversing valve 14 is in a state of communicating the sterilizing device 4 with the pretreatment filter element 21, the booster pump 31 is controlled to work, and the sterilizing device 4 does not work. Tap water sequentially flows through the water inlet electromagnetic valve 11, the sterilizing device 4, the first three-way reversing valve 14, the pretreatment filter element 21, the booster pump 31 and the reverse osmosis filter element 22, water entering the reverse osmosis filter element 22 is filtered to generate pure water and concentrated water, the pure water flows through the high-pressure switch 12 from a pure water port of the reverse osmosis filter element 22 and then is discharged from the water faucet 5, and the concentrated water is discharged through the waste water pipe 221.

If easily oxidized materials exist in the pretreatment filter element 21, when sterilization is carried out, the water tap 5 is closed, the main control board controls the water inlet electromagnetic valve 11 and the wastewater ratio electromagnetic valve 13 to be opened, so that the first three-way reversing valve 14 is in a state of communicating the sterilization device 4 with a pipeline between the pretreatment filter element 21 and the booster pump 31, and the booster pump 31 and the sterilization device 4 are controlled to work. The tap water flows through the water inlet electromagnetic valve 11, the sterilizing device 4, the first three-way reversing valve 14, the bypass pipe 141, the booster pump 31 and the reverse osmosis filter element 22 in sequence, and is finally discharged through the waste water pipe 221.

If the pretreatment filter element 21 does not contain materials which are easy to oxidize, the water tap 5 is closed when sterilization is carried out, the main control panel controls the water inlet electromagnetic valve 11 and the wastewater ratio electromagnetic valve 13 to be opened, the first three-way reversing valve 14 is in a state of communicating the sterilization device 4 with the pretreatment filter element 21, and the booster pump 31 and the sterilization device 4 are controlled to work. Tap water sequentially flows through the water inlet electromagnetic valve 11, the sterilizing device 4, the first three-way reversing valve 14, the pretreatment filter element 21, the booster pump 31 and the reverse osmosis filter element 22, and is finally discharged through the waste water pipe 221.

In the third embodiment of the present invention, as shown in fig. 3, the water purifier includes a water treatment pipeline, a pretreatment filter element 21, a booster pump 31, a reverse osmosis filter element 22, a sterilization device 4, a pure water tank 62, a second three-way directional valve 15 are sequentially disposed along a water flow direction on the water treatment pipeline, an upstream end of the water treatment pipeline is connected to a raw water tank 61 as a water source, a first outlet of the second three-way directional valve 15 is sequentially connected to a hot water tank 81 and a hot water valve 16 through a branch pipe, and a second outlet of the second three-way directional valve 15 is sequentially connected to a cold water tank 82 and a cold water valve 17 through another branch pipe. A hot water valve 16 and a cold water valve 17 serve as water supply means. The outlet end of a waste water pipe 221 of the reverse osmosis filter element 22 is connected to the raw water tank 61, and a waste water ratio electromagnetic valve 13 is arranged on the waste water pipe 221. A liquid level sensor 621 is provided in the pure water tank 62. The pure water tank 62 is also connected to the raw water tank 61 through a return pipe 7, and the return pipe 7 is provided with the circulation pump 32. The booster pump 31, the sterilization device 4, the liquid level sensor 621, the circulating pump 32 and the wastewater ratio electromagnetic valve 13 are in communication connection with a main control board of the water purifier. The specific structure of the sterilization device 4 is as described in the first embodiment, and is not described herein again.

When normal water production works, the main control board controls the wastewater ratio electromagnetic valve 13 to be opened, and controls the booster pump 31 to work, and the sterilization device 4 does not work. The water in the raw water tank 61 flows through the pretreatment filter element 21, the booster pump 31 and the reverse osmosis filter element 22 in sequence, the water entering the reverse osmosis filter element 22 is filtered to generate pure water and concentrated water, the pure water flows through the sterilization device 4 from the pure water port of the reverse osmosis filter element 22 and then enters the pure water tank 62, and the concentrated water flows back to the raw water tank 61 through the waste water pipe 221.

When hot water is required to be taken, the second three-way reversing valve 15 is communicated with the pure water tank 62 and the hot water tank 81, the hot water valve 16 is opened, and water in the pure water tank 62 flows into the hot water tank 81 through the second three-way reversing valve 15, is heated by the hot water tank 81 and is discharged from the hot water valve 16.

When cold water needs to be taken, the second three-way reversing valve 15 is communicated with the pure water tank 62 and the cold container 82, the cold water valve 17 is opened, water in the pure water tank 62 flows into the cold container 82 through the second three-way reversing valve 15, and is heated by the cold container 82 and then discharged from the cold water valve 17.

When sterilization is required, the liquid level sensor 621 detects the water level in the pure water tank 62. If the water level in the pure water tank 62 is lower than the first preset value, the second three-way directional valve 15 is in a state of not communicating with both the hot bladder 81 and the cold bladder 82, and the main control board controls the wastewater ratio electromagnetic valve 13 to be opened and controls the booster pump 31 and the sterilization device 4 to work. The water in the raw water tank 61 flows through the pretreatment filter element 21, the booster pump 31 and the reverse osmosis filter element 22 in sequence, the water entering the reverse osmosis filter element 22 is filtered to generate pure water and concentrated water, the pure water flows through the sterilization device 4 from the pure water port of the reverse osmosis filter element 22 and then enters the pure water tank 62, and the concentrated water flows back to the raw water tank 61 through the waste water pipe 221. If the water level in the pure water tank 62 is higher than the second preset value (the second preset value is larger than the first preset value), the main control board controls the circulating pump 32 to work, the water in the pure water tank 62 is conveyed to the raw water tank 61 through the return pipe 7, when the water level in the pure water tank 62 is reduced to the first preset value, the second three-way reversing valve 15 is in a state of not communicating with the hot liner 81 and the cold liner 82, and the main control board controls the wastewater ratio electromagnetic valve 13 to be opened and controls the booster pump 31 and the sterilization device 4 to work. The water in the raw water tank 61 flows through the pretreatment filter element 21, the booster pump 31 and the reverse osmosis filter element 22 in sequence, the water entering the reverse osmosis filter element 22 is filtered to generate pure water and concentrated water, the pure water flows through the sterilization device 4 from the pure water port of the reverse osmosis filter element 22 and then enters the pure water tank 62, and the concentrated water flows back to the raw water tank 61 through the waste water pipe 221.

During sterilization, the booster pump 31 and the circulating pump 32 can also be controlled to work simultaneously, water in the raw water tank 61 flows through the pretreatment filter element 21, the booster pump 31 and the reverse osmosis filter element 22 in sequence, water entering the reverse osmosis filter element 22 is filtered to generate pure water and concentrated water, the concentrated water flows back to the raw water tank 61 through the waste water pipe 221, the pure water flows through the sterilization device 4 from the pure water inlet of the reverse osmosis filter element 22 and then enters the pure water tank 62, water entering the pure water tank 62 flows back to the raw water tank 61 through the return pipe 7, and the circulation is performed in such a way to sterilize the circulating loop.

In the fourth embodiment of the present invention, as shown in fig. 4, the water purifier includes a water treatment pipeline, a water inlet solenoid valve 11 is sequentially disposed along the water flow direction on the water treatment pipeline, a booster pump 31, a pretreatment filter element 21, a reverse osmosis filter element 22, a sterilization device 4, a pure water tank 62, a second three-way directional valve 15, an upstream end of the water treatment pipeline is connected to a water pipe (not shown in the figure) as a water source, a first outlet of the second three-way directional valve 15 is sequentially connected to a hot water tank 81 and a hot water valve 16 through a branch pipe, and a second outlet of the second three-way directional valve 15 is sequentially connected to a cold water tank 82 and a cold water valve 17 through another branch pipe. A hot water valve 16 and a cold water valve 17 serve as water supply means. The waste water pipe 221 is provided with a waste water ratio electromagnetic valve 13. A liquid level sensor 621 is provided in the pure water tank 62. The pure water tank 62 is also connected to the line between the booster pump 31 and the pretreatment cartridge 21 through a return pipe 7, and the return pipe 7 is provided with a circulation pump 32. The water inlet electromagnetic valve 11, the booster pump 31, the sterilizing device 4, the liquid level sensor 621 and the circulating pump 32 are in communication connection with a main control board of the water purifier. The specific structure of the sterilization device 4 is as described in the first embodiment, and is not described herein again.

When normal water production works, the main control board controls the water inlet electromagnetic valve 11 and the wastewater ratio electromagnetic valve 13 to be opened, and controls the booster pump 31 to work, and the sterilization device 4 does not work. Tap water sequentially flows through the water inlet electromagnetic valve 11, the booster pump 31, the pretreatment filter element 21 and the reverse osmosis filter element 22, water entering the reverse osmosis filter element 22 is filtered to generate pure water and concentrated water, the pure water flows through the sterilization device 4 from a pure water port of the reverse osmosis filter element 22 and then enters the pure water tank 62, and the concentrated water is discharged through the waste water pipe 221.

When hot water is required to be taken, the second three-way reversing valve 15 is communicated with the pure water tank 62 and the hot water tank 81, the hot water valve 16 is opened, and water in the pure water tank 62 flows into the hot water tank 81 through the second three-way reversing valve 15, is heated by the hot water tank 81 and is discharged from the hot water valve 16.

When cold water needs to be taken, the second three-way reversing valve 15 is communicated with the pure water tank 62 and the cold container 82, the cold water valve 17 is opened, water in the pure water tank 62 flows into the cold container 82 through the second three-way reversing valve 15, and is heated by the cold container 82 and then discharged from the cold water valve 17.

When sterilization is required, the liquid level sensor 621 detects the water level in the pure water tank 62. If the water level in the pure water tank 62 is lower than the first preset value, the second three-way directional valve 15 is in a state of not communicating with both the hot bladder 81 and the cold bladder 82, the main control board controls the water inlet electromagnetic valve 11 and the wastewater ratio electromagnetic valve 13 to be opened, and controls the booster pump 31 and the sterilization device 4 to work. Tap water sequentially flows through the water inlet electromagnetic valve 11, the booster pump 31, the pretreatment filter element 21 and the reverse osmosis filter element 22, water entering the reverse osmosis filter element 22 is filtered to generate pure water and concentrated water, the pure water flows through the sterilization device 4 from a pure water port of the reverse osmosis filter element 22 and then enters the pure water tank 62, and the concentrated water is discharged through the waste water pipe 221. If the water level in the pure water tank 62 is higher than the second preset value (the second preset value is higher than the first preset value), the main control board controls the second three-way reversing valve 15 to communicate the pure water tank 62 with the hot bladder 81 and the cold bladder 82 until the water level in the pure water tank 62 is reduced to the first preset value. Then the second three-way change valve 15 is in a state of not communicating with the hot liner 81 and the cold liner 82, the main control board controls the wastewater ratio electromagnetic valve 13 to be opened, and controls the circulating pump 32 and the sterilizing device 4 to work. The water in the pure water tank 62 flows through the return pipe 7, the pretreatment filter element 21 and the reverse osmosis filter element 22 in sequence, the water entering the reverse osmosis filter element 22 is filtered to generate pure water and concentrated water, the pure water flows through the sterilization device 4 from the pure water port of the reverse osmosis filter element 22 and then enters the pure water tank 62, and the concentrated water is discharged through the waste water pipe 221.

It should be noted that the water supply device may be a water pump provided with a check valve.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims (10)

1. The utility model provides a water purifier, its characterized in that, the water purifier includes the water treatment pipeline, the low reaches end and the water supply installation of water treatment pipeline are connected, the upper reaches end of water treatment pipeline is connected to the water source, it has filter equipment and sterilizing equipment to establish ties on the water treatment pipeline, sterilizing equipment includes the casing, the both ends of casing are equipped with water inlet and delivery port respectively, be equipped with the electrolysis subassembly in the casing, the electrolysis subassembly includes anode plate, proton exchange membrane and the negative plate that sets gradually along the rivers direction, the anode plate is the diamond electrode.

2. The water purifier of claim 1, wherein the cathode plate is a diamond electrode.

3. The water purifier as recited in claim 2, wherein said anode plate is provided with a first water through hole, said proton exchange membrane is provided with a second water through hole coaxial with said first water through hole, and said first water through hole is smaller than said second water through hole.

4. The water purifier according to claim 3, wherein an elastic member is further provided in said housing, and both ends of said elastic member are respectively abutted against said cathode plate and an inner wall of said housing.

5. The water purifier according to claim 3, wherein a water diversion plate is arranged between said water inlet and said anode plate, and a third water through hole coaxial with said first water through hole is arranged on said water diversion plate.

6. The water purifier according to any one of claims 1 to 5, wherein the filter unit comprises a reverse osmosis filter element, an inlet and a pure water outlet of the reverse osmosis filter element are connected in series to the water treatment pipeline, a wastewater ratio solenoid valve is disposed on a wastewater pipe of the reverse osmosis filter element, the sterilization unit is disposed between the inlet of the reverse osmosis filter element and the water source, and a booster pump is disposed between the inlet of the reverse osmosis filter element and the water source.

7. The water purifier as recited in claim 6, wherein said water supply device is a water tap, a high pressure switch is disposed between said water tap and a pure water outlet of said reverse osmosis filter element, and said booster pump, said sterilization device and said high pressure switch are in communication connection with an electronic control board of said water purifier.

8. The water purifier as recited in claim 7, wherein said sterilization device is disposed at an upstream side of said booster pump, a three-way directional valve and a pre-treatment filter element are sequentially disposed between said sterilization device and said booster pump along a water flow direction, an inlet and a first outlet of said three-way directional valve are respectively connected to a water outlet of said sterilization device and an inlet of said pre-treatment filter element, a second outlet of said three-way directional valve is connected to a pipeline between said pre-treatment filter element and said booster pump through a bypass pipe, and said three-way directional valve is in communication connection with an electronic control board of said water purifier.

9. The water purifying machine according to any one of claims 1 to 5, wherein the filtering device comprises a reverse osmosis filter element, an inlet and a pure water outlet of the reverse osmosis filter element are connected in series to the water treatment pipeline, a wastewater ratio solenoid valve is disposed on a wastewater pipe of the reverse osmosis filter element, a pure water tank is disposed between the pure water outlet of the reverse osmosis filter element and the water supply device, the sterilizing device is disposed at an upstream side of the pure water tank, the pure water tank is connected to the pipeline at an upstream side of the sterilizing device through a return pipe, and a circulating pump is disposed on the return pipe.

10. The water purifier of claim 9, wherein the sterilizing device is disposed between the pure water outlet of the reverse osmosis cartridge and the pure water tank.

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