阅读说明：本技术 一种带有换向阀的净水系统 (Water purification system with reversing valve ) 是由 孙科 曾华元 于 2019-09-09 设计创作，主要内容包括：本发明涉及净水领域,公开一种带有换向阀的净水系统,包括反渗透滤芯和与反渗透滤芯连接的进水管；还包括换向阀,换向阀包括阀体、内阀芯、外阀芯和驱动器；阀体内设有第一净水流道、第一浓水流道、第二净水流道、第二浓水流道和混水流道；外阀芯上设有第一过水孔,内阀芯上设有第二过水孔；驱动器驱动外阀芯转动并切换第一过水孔与第二净水流道连通或与混水流道连通,外阀芯带动内阀芯同步转动并切换第二过水孔与第二浓水流道流通或与混水流道流通；还包括回流管,回流管一端与混水流道流通,其另一端与进水管连通。本净水系统的纯水和浓水能够通过换向阀回流到进水管中,将纯水端TDS含量过高的纯水回流到进水管中,保证纯水水质。(The invention relates to the field of water purification, and discloses a water purification system with a reversing valve, which comprises a reverse osmosis filter element and a water inlet pipe connected with the reverse osmosis filter element; the reversing valve comprises a valve body, an inner valve core, an outer valve core and a driver; a first water purification flow passage, a first concentrated water flow passage, a second water purification flow passage, a second concentrated water flow passage and a water mixing flow passage are arranged in the valve body; the outer valve core is provided with a first water through hole, and the inner valve core is provided with a second water through hole; the driver drives the outer valve core to rotate and switches the first water through hole to be communicated with the second pure water flow channel or the mixed water flow channel, and the outer valve core drives the inner valve core to synchronously rotate and switches the second water through hole to be communicated with the second concentrated water flow channel or the mixed water flow channel; the water mixing device also comprises a return pipe, wherein one end of the return pipe is communicated with the water mixing flow channel, and the other end of the return pipe is communicated with the water inlet pipe. This water purification system's pure water and dense water can flow back the inlet tube in through the switching-over valve, with the too high pure water reflux of pure water end TDS content in the inlet tube, guarantee pure water quality of water.)

1. A water purification system with a reversing valve comprises a reverse osmosis filter element (10) and a water inlet pipe (11) connected with the reverse osmosis filter element (10); it is characterized by also comprising:

the reversing valve (12), the reversing valve (12) comprises a valve body (121), an inner valve core (122), an outer valve core (123) and a driver (124);

a first pure water flow passage (1211), a first concentrated water flow passage (1212), a second pure water flow passage (1213), a second concentrated water flow passage (1214), a mixed water flow passage (1215) and a cavity are arranged in the valve body (121);

the outer valve core (123) and the inner valve core (122) are connected and synchronously rotate, the outer valve core (123) and the inner valve core (122) are hermetically installed in the cavity and form a purified water cavity (100) and a concentrated water cavity (200), the purified water cavity (100) is communicated with the first purified water flow channel (1211), the concentrated water cavity (200) is communicated with the first concentrated water flow channel (1212), a first water through hole (1231) communicated with the purified water cavity (100) is arranged on the outer valve core (123), and a second water through hole (1221) communicated with the concentrated water cavity (200) is arranged on the inner valve core (122);

the driver (124) is installed on the valve body (121) and drives the outer valve core (123) to rotate, the outer valve core (123) rotates and switches the first water through hole (1231) to be communicated with the second purified water flow channel (1213) or to be communicated with the water mixing flow channel (1215), and the outer valve core (123) drives the inner valve core (122) to synchronously rotate and switches the second water through hole (1221) to be communicated with the second concentrated water flow channel (1214) or to be communicated with the water mixing flow channel (1215);

the water mixing device also comprises a return pipe (13), one end of the return pipe (13) is communicated with the water mixing flow channel (1215), and the other end of the return pipe (13) is communicated with the water inlet pipe (11).

2. The water purification system with the reversing valve as claimed in claim 1, wherein the valve body (121) is provided with a first water purification connector (125) arranged on the first water purification flow passage (1211) and a first concentrated water connector (126) arranged on the first concentrated water flow passage (1212), the reverse osmosis filter element (10) is provided with a second water purification connector and a second concentrated water connector, the reversing valve (12) is connected with the reverse osmosis filter element (10) in a clamping manner, the first water purification connector (125) is connected with the second water purification connector in a sealing manner, and the first concentrated water connector (126) is connected with the second concentrated water connector in a sealing manner.

3. The water purification system with the reversing valve as claimed in claim 1, wherein a limiting rod (1232) is fixed at one end of the outer valve core (123), a limiting groove (1222) is arranged on one end surface of the inner valve core (122), the outer valve core (123) is clamped on the limiting groove (1222) of the inner valve core (122) through the limiting rod (1232), a water passing gap (1233) communicated with the first water purification flow channel (1211) is formed between the outer valve core (123) and the inner valve core (122), a first groove (1233) communicated with the water passing gap (1001) is arranged on one end surface of the outer valve core (123), the first water passing hole (1231) is communicated with the first groove (1233), and the first groove (1233) and the water passing gap (1001) form the water purification cavity (100).

4. The water purification system with the reversing valve as claimed in claim 1, wherein a transition groove (2001) is formed in the inner bottom surface of the chamber, the first concentrated water channel (1212) is communicated with the transition groove (2001), a second groove (1223) communicated with the transition groove (2001) is formed in the other end surface of the inner valve core (122), the second water through hole (1221) is communicated with the second groove (1223), and the second groove (1223) and the transition groove (2001) form a concentrated water cavity (200).

5. The water purification system with the reversing valve as claimed in claim 1, wherein a mixing chamber (1216), a first communicating hole (1217) and a second communicating hole (1218) are further provided in the valve body (121), the mixed water flow passage (1215) is connected to the mixing chamber (1216), one ends of the first communicating hole (1217) and the second communicating hole (1218) are both communicated with the mixing chamber (1216), the outer spool (123) switches the first water passing hole (1231) to be communicated with the first communicating hole (1217), and the inner spool (122) switches the second water passing hole (1221) to be communicated with the second communicating hole (1218).

6. The water purification system with the reversing valve as claimed in claim 1, wherein the valve body (121) is further provided with a first water inlet flow passage (1219) and a second water inlet flow passage (12110), one end of the second water inlet flow passage (12110) is connected with the water inlet pipe (11), the other end of the second water inlet flow passage is communicated with the first water inlet flow passage (1219), a first water inlet joint (127) is installed at a port of the first water inlet flow passage (1219), the reverse osmosis filter element (10) is provided with a second water inlet joint, and the first water inlet joint (127) is connected with the second water inlet joint in a clamping manner.

7. A water purification system with a diverter valve according to any one of claims 1-6, further comprising a pre-filter cartridge (14) and a water pump (15), both the pre-filter cartridge (14) and the water pump (15) being mounted on the inlet pipe (11), the return pipe (13) being provided on the inlet pipe (11) between the pre-filter cartridge (14) and the water pump (15).

8. The water purification system with the reversing valve as claimed in any one of claims 1 to 6, further comprising a post-filter element (16) and a concentrate outlet pipe (17), wherein the post-filter element (16) is communicated with the second purified water flow passage (1213) of the reversing valve (12) through a pipeline, and the concentrate outlet pipe (17) is communicated with the second concentrate flow passage (1214) of the reversing valve (12).

Technical Field

The invention relates to the field of water purification, in particular to a water purification system with a reversing valve.

Background

The current market water treatment facilities face several problems:

when not using with current reverse osmosis membrane, concentrated waste water can stay in reverse osmosis membrane's waste water side always, and after reaching the definite time, the salinity or other soluble solid of waste water side can get into the pure water end through reverse osmosis membrane, and when water purification system when operation once more, the TDS (soluble solid) content of the pure water of pure water end-to-end is too high to influence out water quality of water, greatly reduced consumer's actual demand. Current producer is through discharging the first high TDS play water or dilute the quality of water of high TDS through built-in water tank, and these several kinds of modes have all caused great waste on water resource and product space to the urgent demand in market is a new technical mode and is solved the high problem of first play water quality TDS.

The volume of water treatment products occupies a greater percentage of the cabinet space, and the diversification of kitchen appliances requires that the water treatment products occupy a smaller and smaller percentage of the cabinet space. When all parts in the water route of the existing water treatment equipment are connected, the number of the adapters is too many, various manufacturing and assembling errors are caused, the water leakage risk of products is increased, and meanwhile, the cost is increased and the waste is caused. The need for assembly between the various components, lack of integrated modularity, increased complexity of assembly of the product and limited reduction in volume of the product. The existing water treatment product has the defects of unreasonable utilization of product space and insufficient optimization of product cost due to the unreasonable integration and optimization among various valves, switches and other accessories. Due to various requirements and practical applications of water treatment, the water path of the water purifying equipment is required to be more and more complex, and the structural requirement is required to be more and more simple.

The water purifiers on the market also have application switching-over valve, but the structure is all different, wherein has the switching-over of one way water, for example application number: 201510492419.8, title of the invention: the water purifier with water passage change-over valve and water passage change-over valve has one water passage change-over valve, and the change-over valve core is rotated to change the flow of raw water to the water purifier or to discharge the raw water directly. The existing reversing valve can not converge two independent water channels into one channel.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a water purification system with a reversing valve.

In order to solve the technical problem, the invention is solved by the following technical scheme:

a water purification system with a reversing valve comprises a reverse osmosis filter element and a water inlet pipe connected with the reverse osmosis filter element; further comprising:

the reversing valve comprises a valve body, an inner valve core, an outer valve core and a driver;

a first purified water flow passage, a first concentrated water flow passage, a second purified water flow passage, a second concentrated water flow passage, a mixed water flow passage and a cavity are arranged in the valve body;

the outer valve core and the inner valve core are connected and synchronously rotate, the outer valve core and the inner valve core are hermetically arranged in the cavity and form a purified water cavity and a concentrated water cavity, the purified water cavity is communicated with the first purified water flow channel, the concentrated water cavity is communicated with the first concentrated water flow channel, the outer valve core is provided with a first water through hole communicated with the purified water cavity, and the inner valve core is provided with a second water through hole communicated with the concentrated water cavity;

the driver is arranged on the valve body and drives the outer valve core to rotate, the outer valve core rotates and switches the first water through hole to be communicated with the second purified water flow channel or communicated with the water mixing flow channel, and the outer valve core drives the inner valve core to synchronously rotate and switches the second water through hole to be communicated with the second concentrated water flow channel or communicated with the water mixing flow channel;

the water mixing device also comprises a return pipe, wherein one end of the return pipe is communicated with the water mixing flow channel, and the other end of the return pipe is communicated with the water inlet pipe.

When the water purifier is not used for a long time, salt or other soluble solids on the waste water side can enter the pure water end through the reverse osmosis membrane. This water purification system's pure water and dense water can converge to the inlet tube through the switching-over valve in, go on reverse osmosis once more in refluxing the inlet tube with the too high pure water of pure water end TDS content, make full use of water resource prevents the waste of water resource, guarantees the pure water quality of water that the drinker drunk.

The reversing valve in the system adopts a double-valve-element design, the two valve elements can respectively control the original water paths, and the water in the two water paths can be gathered on one water path in a linkage manner, so that the pure water with overhigh TDS content at the pure water end can be refluxed into the water inlet pipe for secondary reverse osmosis filtration, and the water quality of the outlet water is improved. Meanwhile, the concentrated water remained in the second concentrated water flow channel flow can flow back to the water inlet pipe together for secondary filtration, so that the water resource is saved.

Preferably, the valve body is provided with a first water purification joint arranged on the first water purification flow passage and a first concentrated water joint arranged on the first concentrated water flow passage, the reverse osmosis filter element is provided with a second water purification joint and a second concentrated water joint, the reversing valve is clamped and connected with the reverse osmosis filter element, the first water purification joint is hermetically connected with the second water purification joint, and the first concentrated water joint is hermetically connected with the second concentrated water joint.

When the reversing valve is arranged on the reverse osmosis filter element through the water pipe, the number of connection points on a system pipeline is large, and the hidden danger of leakage is increased. The reversing valve is directly arranged on the reverse osmosis filter element through the joint, the number of connecting points is small, and leakage points are reduced.

Preferably, a limiting rod is fixed at one end of the outer valve core, a limiting groove is formed in one end face of the inner valve core, the outer valve core is clamped on the limiting groove of the inner valve core through the limiting rod, a water passing gap communicated with the first water purifying flow channel is formed between the outer valve core and the inner valve core, a first groove communicated with the water passing gap is formed in one end face of the outer valve core, the first water passing hole is communicated with the first groove, and a water purifying cavity is formed between the first groove and the water passing gap.

The gag lever post makes outer case can rotate with the inner valve core in step with the spacing groove cooperation, can form the water clearance simultaneously between outer case and the inner valve core, crosses the water clearance and makes first water purification runner and water purification chamber intercommunication, and the volume in first recess increase water purification chamber has also shortened the pure water in the water purification intracavity simultaneously and has flowed to the route in second water purification runner or the water mixing runner.

Preferably, the inner bottom surface of the cavity is provided with a transition groove, the first concentrated water flow channel is communicated with the transition groove, the other end surface of the inner valve core is provided with a second groove communicated with the transition groove, the second water passing hole is communicated with the second groove, and the second groove and the transition groove form a concentrated water cavity.

The transition groove enables the first concentrated water flow channel to be communicated with the concentrated water cavity on one hand, and enables the bottom surface of the cavity to form a step surface on the other hand, so that the inner valve core can be axially positioned, and the inner valve core is prevented from axially moving; the second groove increases the volume in the concentrated water cavity, and simultaneously shortens the path from the concentrated water in the concentrated water cavity to the second concentrated water flow channel or the mixed water flow channel.

Preferably, a mixing cavity, a first communicating hole and a second communicating hole are further formed in the valve body, the mixed water flow channel is connected with the mixing cavity, one ends of the first communicating hole and the second communicating hole are communicated with the mixing cavity, the outer valve core switches the first water passing hole to be communicated with the first communicating hole, and the inner valve core switches the second water passing hole to be communicated with the second communicating hole.

The first intercommunicating pore can be with the pure water drainage of water purification intracavity to the mixing chamber in, the second intercommunicating pore can be with the dense water drainage of dense water intracavity to the mixing chamber in.

Preferably, the valve body is further provided with a first water inlet flow channel and a second water inlet flow channel, one end of the second water inlet flow channel is connected with the water inlet pipe, the other end of the second water inlet flow channel is communicated with the first water inlet flow channel, a first water inlet connector is installed at the port of the first water inlet flow channel, the reverse osmosis filter element is provided with a second water inlet connector, and the first water inlet connector is connected with the second water inlet connector in a clamping mode.

The valve body is integrated with a first water inlet flow channel and a second water inlet flow channel, raw water directly enters the filter flask from the first water inlet pipe in the valve body, the traditional water pipe type connection is replaced, leakage points are reduced, and the failure rate of the water purifier is lower.

Preferably, the water pump further comprises a preposed filter element and a water pump, wherein the preposed filter element and the water pump are both arranged on the water inlet pipe, and the return pipe is arranged on the water inlet pipe between the preposed filter element and the water pump. The water pump can carry the mixed water in the return line to carry the secondary filtration in the reverse osmosis membrane filter core again, reduces the too high problem of pure water TDS when initially opening.

Preferably, the device also comprises a post-filter element and a concentrated water outlet pipe, wherein the post-filter element is communicated with the second pure water flow channel of the reversing valve through a pipeline, and the concentrated water outlet pipe is communicated with the second concentrated water flow channel of the reversing valve. When the reversing valve does not reverse, the original water path can be ensured, namely pure water flows into the rear filter element, and concentrated water is directly discharged through the second concentrated water flow channel.

Due to the adoption of the technical scheme, the invention has the remarkable technical effects that:

when the water purifier is not used for a long time, salt or other soluble solids on the waste water side can enter the pure water end through the reverse osmosis membrane. This water purification system's pure water and dense water can converge to the inlet tube through the switching-over valve in, go on reverse osmosis once more in refluxing the inlet tube with the too high pure water of pure water end TDS content, make full use of water resource prevents the waste of water resource, guarantees the pure water quality of water that the drinker drunk.

The reversing valve in the system adopts a double-valve-element design, the two valve elements can respectively control the original water paths, and the water in the two water paths can be gathered on one water path in a linkage manner, so that the pure water with overhigh TDS content at the pure water end can be refluxed into the water inlet pipe for secondary reverse osmosis filtration, and the water quality of the outlet water is improved. Meanwhile, the concentrated water remained in the second concentrated water flow channel flow can flow back to the water inlet pipe together for secondary filtration, so that the water resource is saved.

Drawings

FIG. 1 is a system framework diagram of the present invention.

Fig. 2 is a schematic view of the external structure of the direction valve of fig. 1.

Fig. 3 is an exploded view of the diverter valve of fig. 1.

Fig. 4 is a schematic bottom view of fig. 2.

Fig. 5 is a schematic sectional structure view of a-a in fig. 4.

Fig. 6 is a schematic axial sectional view of the outer spool of fig. 3.

Fig. 7 is a schematic top view of the structure of fig. 2.

Fig. 8 is a schematic sectional structure view of B-B in fig. 7.

The names of the parts indicated by the numerical references in the above figures are as follows: wherein, 10-reverse osmosis filter element, 11-inlet pipe, 12-change valve, 13-return pipe, 14-preposition filter element, 15-water pump, 16-postposition filter element, 17-concentrated water outlet pipe, 100-clear water cavity, 121-valve body, 122-inner valve core, 123-outer valve core, 124-driver, 125-first clear water joint, 126-first concentrated water joint, 127-first inlet joint, 200-concentrated water cavity, 1001-water gap, 1211-first pure water flow channel, 1212-first concentrated water flow channel, 1213-second pure water flow channel, 1214-second concentrated water flow channel, 1215-mixed water flow channel, 1216-mixing chamber, 1217-first communicating hole, 1218-second communicating hole, 1219-first water inlet flow channel, 1221-second water passing hole, 1222-limiting groove, 1223-second groove, 1231-first water passing hole, 1232-limiting rod, 1233-first groove, 2001-transition groove, 12110-second water inlet flow channel.

Detailed Description

The invention will be described in further detail below with reference to the accompanying figures 1-8 and examples.