CN111252959B - Water purifying device capable of adjusting water quality - Google Patents

Abstract

The invention relates to a water quality adjustable water purifying device, which comprises an ion separating mechanism and a flow dividing mechanism arranged at the downstream of the ion separating mechanism, wherein the ion separating mechanism comprises a positive electrode plate and a negative electrode plate which are oppositely arranged, the flow dividing mechanism comprises at least two flow dividing channels, and the water quality adjusting mechanism is arranged at the downstream of the flow dividing channels, and comprises a water purifying flow channel, a waste water flow channel and a regulator for regulating the communication relation between each flow dividing channel and the water purifying flow channel as well as the waste water flow channel. The water quality adjustable water purifying device has the function of adjusting the TDS value of the outlet water, is more convenient to use, has higher flexibility, can be applied to various products with different requirements, and has wider application range.

Description

Water purifying device capable of adjusting water quality

Technical Field

The invention relates to the technical field of water purification, in particular to a water purification device capable of adjusting water quality.

Background

Continuous Electrodeionization (EDI) is a novel membrane separation technology formed by organic combination of electrodialysis and ion exchange. The EDI equipment generally uses two-stage reverse osmosis pure water as the water supply, uses an anion-cation exchange membrane and is not suitable for treating tap water.

The electric field adsorption technology is to utilize an electric field formed between electrodes to make ions offset, so that cations are adsorbed on a cathode, and anions are adsorbed on an anode, thereby realizing the removal of ions in water. Some electric field adsorption techniques adsorb a period of time after, and the electric field is reverse, washes, can continue to use like this, but the centre has one section to wash the dead time that causes, and the water of washing is generally drained as waste water moreover, the water resource of wasting.

The water filtration system disclosed in the patent of chinese utility model with the publication number CN207738558U (application number 201721900473.2) comprises a heavy metal ion separation device, wherein the heavy metal separation device comprises a separation flow channel, an attached electric field positive plate, an attached electric field negative plate, a separation electric field positive plate and a separation electric field negative plate; the outlet of the separation flow channel is provided with N shunting clapboards which are arranged in parallel with the positive plate of the separation electric field at intervals; and taking the water flowing out of one shunt outlet positioned at the middle or any one of the two shunt outlets positioned at the middle as first effluent of the water filtering system, detecting the TDS value of the first effluent, detecting the shunt water most possibly containing heavy metal ions, and if the shunt water contains the heavy metal ions, forcibly discharging the part of the shunt water as wastewater of the water filtering system. When the structure is used, the flowing tap water can be effectively treated, and the water rich in metal ions can be directly discharged as wastewater by depending on the flowing of the tap water. Ions in water can not be accumulated on the electrode plate in a large amount, the operations of electric field reversal and flushing are not needed, the service life is long, and the device is convenient and direct to be applied to the treatment of tap water. However, when the structure is applied, only the water at the outlet of the fixed splitter can be treated as wastewater, and when the structure is actually used, the quality of tap water can be changed, or different users have different requirements on the quality of the water, so that the water filtering system cannot adjust the quality of the outlet water, and cannot meet the requirements on the diversification of the quality of the outlet water.

Disclosure of Invention

The invention aims to solve the technical problem of providing a water quality-adjustable water purifying device capable of adjusting the quality of outlet water in the prior art.

The technical scheme adopted by the invention for solving the problems is as follows: the utility model provides a purifier of adjustable quality of water, includes ion separating mechanism, sets up the reposition of redundant personnel mechanism in ion separating mechanism low reaches, ion separating mechanism is including relative positive electrode piece and the negative electrode piece that sets up, reposition of redundant personnel mechanism includes two at least reposition of redundant personnel passageways, its characterized in that: the water quality adjusting mechanism comprises a water purifying flow channel, a waste water flow channel and an adjuster for adjusting the communicating relation between each flow dividing channel and the water purifying flow channel and between each flow dividing channel and the waste water flow channel.

Simple structure ground, quality of water adjustment mechanism includes the body, be provided with two at least water inlets on the body, every water inlet correspondence is connected with a reposition of redundant personnel passageway's export, the regulator is including setting up regulating plate in the body and promotion regulating plate are for water inlet distribution direction motion driving piece, the regulating plate will the internal mutual isolation of cutting apart of body water purification runner and waste water runner, the regulating plate is adjusted each water inlet and water purification runner, waste water runner's intercommunication relation under the promotion of driving piece.

Conveniently, the water inlet distributes along the axial of body and sets up, the axial motion of regulating plate along the body under the drive of driving piece.

In order to guarantee the leakproofness in the adjustment process, set up along the circumference opening on the body between two adjacent water inlets, be provided with sealing mechanism on the opening, sealing mechanism is including radially movable sealing member that can remove, movable sealing member can cooperate with the regulating plate sealedly.

In order to ensure reliable sealing during the moving process, the sealing mechanism further comprises at least two fixed sealing elements, one movable sealing element is arranged between the two adjacent fixed sealing elements, the movable sealing element can be tightly connected with the fixed sealing elements to close the opening when moving outwards in the radial direction, and the inner wall of the movable sealing element can be in sealing connection with the adjusting plate when the movable sealing element moves inwards in the radial direction.

Preferably, the movable sealing element comprises a base block and a sealing strip connected to the inner wall of the base block, the cross section of the sealing strip is arranged in a conical shape along the radial direction, the sealing strips of the movable sealing elements can be mutually combined to form a sealing ring when the movable sealing elements move inwards along the radial direction, and the outer peripheral surface of the adjusting plate is provided with a shallow groove for placing the sealing ring.

Preferably, one end of the sealing strip is provided with a convex block, the other end of the sealing strip is provided with a concave pit, and the convex block is matched with the concave pit.

In order to ensure the radial inward sealing trend of the sealing mechanism, a shell is further sleeved outside the pipe body, a water inlet pipe is arranged on the side wall of the pipe body and extends outwards from the shell, and the free end of the water inlet pipe forms the water inlet;

two ends of the pipe body respectively extend outwards to form a purified water outlet pipe communicated with the purified water flow passage and a waste water outlet pipe communicated with the waste water flow passage;

the shell is also provided with a water inlet connected with a water source.

In order to ensure the stability of water flow entering between the positive electrode plate and the negative electrode plate and avoid the influence of turbulent flow formed by the water flow between the positive electrode plate and the negative electrode plate on the arrangement and migration of ions in an electric field, a current stabilizing mechanism for stabilizing the current is arranged at the upstream of the ion separation mechanism.

Under the condition of guaranteeing the stationary flow effect, realize the filtration to aquatic impurity, stationary flow mechanism includes orifice plate, first filter layer and the second filter layer that sets gradually along the rivers direction.

Preferably, the first filter layer is a PP cotton layer, and the second filter layer is a sponge layer.

In order to reduce the whole volume and ensure the convenience of installation, the ion separation mechanism and the shunt mechanism are arranged in the box body;

the positive electrode plate and the negative electrode plate are respectively arranged on the upper surface and the lower surface in the box body, one end in the box body is provided with a spacer for isolating the shunt channels, and the side wall of the box body is provided with a water outlet corresponding to each shunt channel.

And a water receiving pipe used for connecting a water source is further arranged at one end of the box body, which is far away from the isolating sheet.

Preferably, a flow stabilizing mechanism is arranged at one end, far away from the isolating sheet, in the box body.

In order to guarantee that the TDS value of play water meets the requirements, be provided with first TDS sensor in each reposition of redundant personnel passageway or the exit of water purification runner.

In order to obtain the TDS value of the feed water and to achieve as early as possible a prejudgement of the regulating strategy of the regulating mechanism, a second TDS sensor is arranged upstream of the ion separation mechanism.

In order to avoid the direct electrolytic action between the electrode plate and water, graphite layers are arranged outside the positive electrode plate and the negative electrode plate.

Compared with the prior art, the invention has the advantages that: the water quality adjusting mechanism is additionally arranged at the downstream of the diversion channel on the basis of the ion separation mechanism and the diversion mechanism, and can adjust the communication relation between each diversion channel and the purified water channel and the wastewater channel through the regulator. So then can confirm whether to switch on this reposition of redundant personnel passageway according to the TDS value of quality of water in each reposition of redundant personnel passageway, and then guarantee to flow into to the water purification runner in quality of water TDS value can satisfy the demands. This purifier of adjustable quality of water has regulatory function to the TDS value of play water, and it is more convenient to use, and the flexibility is higher, can use in the product of various different requirements, and the range of application is wider.

Drawings

FIG. 1 is a structural frame diagram of a water purification apparatus capable of adjusting water quality according to an embodiment of the present invention.

Fig. 2 is a structural frame diagram of another water purifying device capable of adjusting water quality in the embodiment of the invention.

FIG. 3 is a perspective view of a water purification apparatus capable of adjusting water quality according to an embodiment of the present invention.

FIG. 4 is a cross-sectional view of the cartridge in an embodiment of the invention.

FIG. 5 is a sectional view of a water quality adjusting mechanism in an embodiment of the present invention.

Fig. 6 is a sectional exploded view of a water quality adjusting mechanism in an embodiment of the present invention.

Fig. 7 is a perspective view of a sealing mechanism in an embodiment of the present invention.

Fig. 8 is a perspective view of another state of use of the sealing mechanism in the embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

The water quality-adjustable water purifying device in the embodiment can be independently used and can also be placed in a product for use.

As shown in fig. 1 to 8, in the water purifying apparatus capable of adjusting water quality in the present embodiment, a flow stabilizing mechanism 5, an ion separating mechanism 1, a flow dividing mechanism 2, and a water quality adjusting mechanism 3 are sequentially disposed along the flow direction of a water channel. The ion separation mechanism 1 includes a positive electrode sheet 11 and anegative electrode sheet 12 which are oppositely arranged, and the flow dividing mechanism 2 includes at least two flow dividing channels 21.

Wherein the flow stabilizing mechanism 5, the ion separating mechanism 1 and the flow dividing mechanism 2 are arranged in a box body 6. Positive electrode sheet 11,negative electrode sheet 12 install respectively on the upper and lower surface in box body 6, for convenient installation, are provided with the mounting groove on the inside wall of box body upper and lower surface, and positive electrode sheet 11,negative electrode sheet 12 then the card is established in the mounting groove that corresponds. The positive electrode sheet 11 and thenegative electrode sheet 12 are parallel and opposite after being installed, the outer surfaces of the positive electrode sheet 11 and thenegative electrode sheet 12 are provided with wiring terminals, and wiring holes are respectively formed in the upper surface and the lower surface of the shell corresponding to the wiring terminals of the positive electrode sheet 11 and thenegative electrode sheet 12 for connecting a power supply. In the embodiment, the graphite layers are sprayed on the surfaces of the positive electrode plate 11 and thenegative electrode plate 12, so that the metal electrodes are prevented from directly electrolyzing water; meanwhile, when water passes through the positive electrode plate 11 and thenegative electrode plate 12, cations are gathered near thenegative electrode plate 12, and anions are gathered near the positive electrode plate 11, but the ions are not adhered to the positive electrode plate 11 and thenegative electrode plate 12, and respectively flow out from a flow dividing channel 21 described below along with water flow, so that the water treatment device is suitable for effectively treating tap water with high flow rate. And the positive electrode plate 11 and thenegative electrode plate 12 have long service life.

One end of the box body 6 is provided with awater receiving pipe 63 for connecting a water source, and the end of the box body 6 provided with the water receiving pipe is defined as an upstream end. The upstream end in the box body 6 is provided with a flow stabilizing mechanism 5 for stabilizing flow. The flow stabilizing mechanism 5 comprises an orifice plate 51, a first filter layer 52 and a second filter layer 53 which are arranged in sequence along the water flow direction. Wherein the first filter layer 52 is a PP cotton layer and the second filter layer 53 is a sponge layer. When water passes through the pore plate 51, water flow can be uniformly distributed, a steady flow effect is achieved, turbulence conditions caused by high water flow speed and unstable direction are avoided, and ions in water are uniformly distributed and transferred under the action of an electric field when the water flows through the positive electrode plate 11 and thenegative electrode plate 12. Meanwhile, the first filter layer 52 can play a role of filtering impurities in water while enhancing the flow stabilizing effect.

Be provided with a plurality of spacers 62 in the downstream end in the box body 6, then set up 4 parallel arrangement's spacers 62 if need set up 5 reposition of redundant personnel passageways 21, three edge and theframe 61 sealing connection of box body 6 of spacer 62, 4 spacers 62 are so then to be 5 reposition of redundant personnel passageways 21 with the downstream end isolation in the box body 6, rivers flow into in each reposition of redundant personnel passageway 21 after the ion separation effect of positive electrode piece 11,negative electrode piece 12 promptly, and according to the sequence of arranging of reposition of redundant personnel passageway 21, the metal ion concentration in each reposition of redundant personnel passageway 21 changes according to the order gradually. Awater outlet 61 is provided on the side wall of the box body 6 corresponding to each of the flow dividing channels 21.

The water quality adjusting mechanism 3 comprises ashell 302, apipe body 301, anadjuster 33 and a sealing mechanism 4, wherein theshell 302 is sleeved outside thepipe body 301, and theadjuster 33 is arranged in thepipe body 301.

Wherein be provided with the water inlet onbody 301, the quantity of water inlet and separation channel's quantity phase-match, the water inlet in this embodiment sets up alongbody 301's axial distribution, and every water inlet corresponds and is connected with a reposition of redundant personnel passageway 21's export to when connecting, according to the axial direction of water inlet, the water inlet is connected with the reposition of redundant personnel passageway 21 of arranging in proper order, so can make things convenient for subsequent regulation.

The method specifically comprises the following steps: awater inlet pipe 3011 is arranged on the side wall of thepipe body 301 and extends out of thecasing 302, and the free end of thewater inlet pipe 3011 forms the water inlet. Two ends of thepipe body 301 are respectively provided with a purifiedwater outlet pipe 3012 communicated with the purified water flow passage 31 and a wastewater outlet pipe 3013 communicated with the wastewater flow passage 32 in an outward extending manner.Regulator 33 includes a regulatingplate 331 disposed withintubular body 301 and adrive member 332 for moving regulatingplate 331 relative to the water inlet distribution direction, regulatingplate 331 in this embodiment being moved axially alongtubular body 301 bydrive member 332. The drivingmember 332 in this embodiment may be a push rod axially penetrating thetube 301, and the push rod may be driven by a motor. The adjustingplate 331 divides the interior of thetubular body 301 into the purified water flow passage 31 and the wastewater flow passage 32 which are isolated from each other, and the adjustingplate 331 adjusts the communication relationship between the water inlets and the purified water flow passage 31 and the wastewater flow passage 32 under the pushing of the drivingmember 332.

Thehousing 302 is also provided with awater inlet 3021 connected to a source of water. For convenience of connection, a water pipe may be connected between the water inlet of thehousing 302 and the water inlet of the water receiving pipe, and a connection pipe for connecting a water source may be connected to the water pipe, so that when the water source supplies water into the connection pipe, water can be supplied into thehousing 302 and thewater inlet pipe 3011 of the cartridge 6 at the same time.

Thepipe body 301 is arranged along a circumferential opening between two adjacent water inlets, the sealing mechanisms 4 are arranged around the opening, each sealing mechanism 4 comprises at least twofixed sealing pieces 42 and amovable sealing piece 41 arranged between two adjacentfixed sealing pieces 42, themovable sealing piece 41 can move along the radial direction under the action of external force, and themovable sealing piece 41 can be matched with the adjustingplate 331 for sealing. Because themovable sealing element 41 and the fixed sealingelement 42 are tightly attached all the time in the circumferential direction, the circumferential sealing can be effectively ensured. In order to improve the circumferential sealing, grooves which can accommodate sealing rings are provided on the fixedseal 42 and themovable seal 41, wherein the width of the groove on the fixedseal 42 is exactly such that the sealing rings can be inserted. And because themovable sealing element 41 needs to move radially, the width of the groove on themovable sealing element 41 is large, so that the sealing rings of themovable sealing element 41 are all positioned in the groove of themovable sealing element 41 in different states, and the circumferential sealing of the fixed sealingelement 42 and themovable sealing element 41 is ensured.

Themovable sealing element 41 in this embodiment includes abase block 411 interposed between adjacentfixed sealing elements 42, and further includes asealing strip 412 connected to the inner wall of thebase block 411 and capable of sealing in cooperation with the adjustingplate 331, the cross section of the sealingstrip 412 is tapered in the radial direction, and the outer circumferential surface of the adjustingplate 331 is provided with a shallow groove into which the end of the sealingstrip 412 is inserted. Thus, the sealing is realized by the matching of the sealingstrip 412 and the adjustingplate 331, so that the purified water flow passage 31 and the wastewater flow passage 32 are isolated from each other.

Both ends of theseal strip 412 extend circumferentially with respect to thebase block 411, and on the end face of theseal strip 412, one end has aprojection 4121 and the other end has arecess 4122, theprojection 4121 matching therecess 4122. In operation, the inner wall of thebase block 411 of the movable sealingmember 41 can be connected with the inner wall of the fixed sealingmember 42 when the movable sealingmember 41 moves radially outward, and thesealing strip 412 of the movable sealingmember 41 can be connected with the adjustingplate 331 in a sealing manner when the movable sealingmember 41 moves radially inward. And the sealing strips 412 of eachmovable sealing element 41 are sealed and enclosed by the matchingconvex blocks 4121 andconcave pits 4122 to form an interconnected sealing ring.

In operation, the water supply will supply water between thehousing 302 and thetubular body 301, and the water will have a radially inward pressure on the sealing mechanism 4, so that the sealing mechanism 4 will always tend to seal against thetubular body 301. When the adjustingplate 331 passes through the sealing mechanism 4, the movable sealingmember 41 is urged to slide radially outward by the pressure of the adjustingplate 331, and the sealing property of the space in thetubular body 301 can be ensured due to the tight connection between the movable sealingmember 41 and the fixed sealingmember 42. When the adjustingplate 331 passes through the sealing mechanism 4, themovable sealing members 41 are moved radially inward by the water pressure, and the sealing strips 412 of themovable sealing members 41 are connected together to form a sealing ring. Or when the adjustingplate 331 needs to be adjusted to be positioned between two water inlets of the sealing mechanism 4, the adjustingplate 331 moves to a position corresponding to thesealing strip 412, eachmovable sealing element 41 moves radially inwards under the action of water pressure, the sealingstrip 412 of eachmovable sealing element 41 is embedded into the shallow groove of the adjustingplate 331, and the sealing strips 412 of eachmovable sealing element 41 are connected together to form a sealing ring. The cooperation with the adjustingplate 331 is ensured, so that the purified water flow passage 31 and the wastewater flow passage 32 are well separated.

In addition, a second TDS sensor 8 is provided upstream of the ion separation mechanism 1, and the second TDS sensor 8 may be provided at a position of the water inlet. The second TDS sensor 8 can detect the TDS value of intaking, if the TDS value of intaking directly satisfies the TDS threshold value requirement of setting for, then follow-up ion separation mechanism 1, the work of quality of water adjustment mechanism 3 that need not, directly will intake through the water purification runner 31 discharge use can. If the TDS value that the second TDS sensor 8 detected the intaking of acquireing can not satisfy the TDS threshold value requirement of setting for, then can be provided with first TDS sensor 7 according to control demand and precision in each reposition of redundant personnel passageway 21 or the exit of water purification runner 31. The TDS value control water quality adjusting mechanism 3 work that acquires through first TDS sensor 7, and drive adjustingplate 331 is according to carrying out work, and then realizes adjusting the TDS value of the play water in water purification runner 31.

Use fig. 1 as an example, first TDS sensor 7 sets up respectively in each reposition of redundant personnel passageway 21, is marked as first reposition of redundant personnel runner, second reposition of redundant personnel runner, third reposition of redundant personnel runner, fourth reposition of redundant personnel runner, fifth reposition of redundant personnel runner respectively according to the order of TDS value from big to small, and the TDS value in first reposition of redundant personnel runner, second reposition of redundant personnel runner, third reposition of redundant personnel runner, fourth reposition of redundant personnel runner, fifth reposition of redundant personnel runner is TDS1, TDS2, TDS3, TDS4, TDS5 respectively. The water inlets correspondingly connected with the first diversion flow channel, the second diversion flow channel, the third diversion flow channel, the fourth diversion flow channel and the fifth diversion flow channel are respectively marked as a first water inlet, a second water inlet, a third water inlet, a fourth water inlet and a fifth water inlet. When the TDS value that the second TDS sensor 8 detected the intaking of acquireing directly satisfies the TDS threshold value requirement of setting for, then drive regulatingplate 331 to the outside position of first water inlet, guarantee that five water inlet flows all to enter into water purification runner 31 in to supply the product to use. When the TDS value of the inlet water detected and acquired by the second TDS sensor 8 cannot meet the set TDS threshold requirement, the position of the adjustingplate 331 can be controlled by calculating according to the following method.

When the regulatingplate 331 is driven to between the first water inlet and the second water inlet, the TDS value of the water flowing into the purified water flow passage 31 is (TDS2+ TDS3+ TDS4+ TDS5)/4, when the regulatingplate 331 is driven to between the second water inlet and the third water inlet, the TDS value of the water flowing into the purified water flow passage 31 is (TDS3+ TDS4+ TDS5)/3, when the regulatingplate 331 is driven to between the third water inlet and the fourth water inlet, the TDS value of the water flowing into the purified water flow passage 31 is (TDS4+ TDS5)/2, and when the regulatingplate 331 is driven to between the third water inlet and the fourth water inlet, the TDS value of the water flowing into the purified water flow passage 31 is TDS 5. So can detect when adjusting to what position according to each first TDS sensor 7 that the TDS valuecalculation regulating plate 331 who acquires, the TDS value of the water that flows into in the water purification runner 31 can satisfy the TDS threshold value requirement. Thereby controlling the driving of the adjustingplate 331 to the corresponding position. In the process, if the water quality changes during use, the driving of the adjustingplate 331 can be quickly responded, the TDS value of the water quality entering the purified water flow channel 31 can be quickly adjusted to a preset target value, and the response speed is high. The use process can avoid high calcium and magnesium plasma concentration in water, can cause the trouble of scaling to the product in long-term use to can carry out quick processing to the running water that the velocity of flow is high.

Taking fig. 2 as an example, the first TDS sensor 7 is disposed at the outlet of the purified water flow channel 31, and detects whether the TDS value of the effluent of the purified water flow channel 31 meets the TDS threshold requirement, and if not, the drivingadjustment plate 331 is controlled to move towards the water inlet with lower TDS concentration. This configuration provides fewer first TDS sensors 7, but the response speed is faster than the previously described water quality adjustable purifier of fig. 1.

The water quality-adjustable water purifying device has small integral volume, can be independently installed, and can also be installed in specific products, such as water heaters and dish washing machines, so that the occupied space is small. The water quality can be adjusted according to the preference and the application scene of the user, the water resource is saved to the maximum extent, high-quality water is provided for the user, the application experience of the user is enhanced, and continuous water production can be realized. Meanwhile, the problem that the structure is used for a long time due to overhigh hardness of water is solved, and the service life is prolonged.

Claims (9)

1. The utility model provides a purifier of adjustable quality of water, includes ion separation mechanism (1), sets up reposition of redundant personnel mechanism (2) in ion separation mechanism (1) low reaches, ion separation mechanism (1) is including relative positive electrode piece (11) and the negative electrode piece (12) that set up, reposition of redundant personnel mechanism (2) are including two at least reposition of redundant personnel passageways (21), its characterized in that: the water quality adjusting mechanism (3) is arranged at the downstream of the flow dividing channel (21), and the water quality adjusting mechanism (3) comprises a water purifying flow channel (31), a waste water flow channel (32) and an adjuster (33) for adjusting the communication relation of the flow dividing channel (21), the water purifying flow channel (31) and the waste water flow channel (32);

the water quality adjusting mechanism (3) comprises a pipe body (301), at least two water inlets are formed in the pipe body (301), each water inlet is correspondingly connected with an outlet of one diversion channel (21), the adjuster (33) comprises an adjusting plate (331) arranged in the pipe body (301) and a driving part (332) for pushing the adjusting plate (331) to move relative to the distribution direction of the water inlets, the adjusting plate (331) divides the inside of the pipe body (301) into a purified water flow channel (31) and a waste water flow channel (32) which are mutually isolated, and the adjusting plate (331) adjusts the communication relation between each water inlet and the purified water flow channel (31) and the waste water flow channel (32) under the pushing of the driving part (332);

the water inlets are distributed along the axial direction of the pipe body (301), and the adjusting plate (331) moves along the axial direction of the pipe body (301) under the driving of the driving part (332);

the pipe body (301) is arranged between two adjacent water inlets along a circumferential opening, a sealing mechanism (4) is arranged on the opening, the sealing mechanism (4) comprises a movable sealing element (41) capable of moving along a radial direction, and the movable sealing element (41) can be matched and sealed with an adjusting plate (331);

the sealing mechanism (4) further comprises at least two fixed sealing pieces (42), one movable sealing piece (41) is arranged between every two adjacent fixed sealing pieces (42), the movable sealing piece (41) can be tightly connected with the fixed sealing pieces (42) to close the opening when moving outwards in the radial direction, and the inner wall of the movable sealing piece (41) can be in sealing connection with the adjusting plate (331) when the movable sealing piece (41) moves inwards in the radial direction;

the water inlet pipe is characterized in that a shell (302) is further sleeved outside the pipe body (301), a water inlet pipe (3011) is arranged on the side wall of the pipe body (301) and extends out of the shell (302), and the free end of the water inlet pipe (3011) forms the water inlet;

two ends of the pipe body (301) are respectively provided with a purified water outlet pipe (3012) communicated with the purified water flow passage (31) and a waste water outlet pipe (3013) communicated with the waste water flow passage (32) in an outward extending manner;

the housing (302) is further provided with a water inlet (3021) connected to a water source so that the water source supplies water between the housing (302) and the pipe body (301).

2. The water quality-adjustable water purifying device according to claim 1, wherein: the movable sealing element (41) comprises a base block (411) and sealing strips (412) connected to the inner wall of the base block (411), the cross sections of the sealing strips (412) are arranged in a conical shape along the radial direction, the sealing strips (412) of the movable sealing elements (41) can be mutually combined and connected into a sealing ring when the movable sealing elements (41) move inwards along the radial direction, and a shallow groove for placing the sealing ring is formed in the outer peripheral surface of the adjusting plate (331).

3. A water purification apparatus as claimed in claim 2, wherein: one end of the sealing strip (412) is provided with a convex block (4121), the other end of the sealing strip (412) is provided with a concave pit (4122), and the convex block (4121) is matched with the concave pit (4122).

4. A water purifying apparatus as claimed in any one of claims 1 to 3, wherein: and a flow stabilizing mechanism (5) for stabilizing the flow is arranged at the upstream of the ion separation mechanism (1).

5. The water quality-adjustable water purifying device according to claim 4, wherein: the flow stabilizing mechanism (5) comprises a pore plate (51), a first filter layer (52) and a second filter layer (53) which are sequentially arranged along the water flow direction.

6. A water purifying apparatus as claimed in any one of claims 1 to 3, wherein: the ion separation mechanism (1) and the shunt mechanism (2) are arranged in the box body (6);

positive electrode piece (11), negative electrode piece (12) are installed respectively on the upper and lower surface in the box body, one end in box body (6) is provided with spacing block (62) that are used for keeping apart reposition of redundant personnel passageway (21), be provided with delivery port (61) corresponding to every reposition of redundant personnel passageway (21) on the lateral wall of box body (6).

7. The water quality-adjustable water purifying device according to claim 6, wherein: and a water receiving pipe used for connecting a water source is further arranged at one end of the box body (6) far away from the isolating sheet (62).

8. The water quality-adjustable water purifying device according to claim 6, wherein: and a flow stabilizing mechanism (5) is arranged at one end of the box body (6) far away from the isolating sheet (62).

9. A water purifying apparatus as claimed in any one of claims 1 to 3, wherein: graphite layers are arranged outside the positive electrode sheet (11) and the negative electrode sheet (12).

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