CN217025443U - Water purification system and dish washing machine - Google Patents

Abstract

The utility model relates to the technical field of kitchen equipment, and provides a water purification system and a dish washing machine, wherein the water purification system is used for the dish washing machine and comprises a pure water tank, a waste water tank and a purification device; the outlet of the pure water tank is suitable for being communicated with a water supply pipeline of the dish washing machine; the purification device is provided with a first water outlet and a second water outlet, the first water outlet is communicated with the inlet of the pure water tank, and the second water outlet is communicated with the inlet of the waste water tank; the outlet of the waste water tank is adapted to be switched in communication with the water inlet of the purification apparatus and in communication with the outer discharge line by means of a first communication assembly. According to the water purification system provided by the utility model, the waste water tank can selectively directly discharge waste water to a kitchen sewer pipeline through the discharge pipeline, and can also be directly introduced into the purification device to be purified with tap water again, so that the direct external discharge of the waste water is reduced, the consumption of the tap water for purification is saved, and the waste of water resources is avoided.

Description

Water purification system and dish washing machine

Technical Field

The utility model relates to the technical field of kitchen equipment, in particular to a water purification system and a dish washing machine.

Background

The water purification system provides pure water used in the washing process for the dish washing machine, and the tap water is desalted and purified to reduce the hardness of the water body. For a household dish washing machine, the quality of water quality affects the cleanliness of dishes, for example, when the hardness of water quality is high, scale is remained on washed dishes, and the hardness of water quality affects the effect of detergent in the dish washing machine. However, ion exchange in the water purification system is limited by factors such as membrane stack, the purified pure water amount is limited, the residual wastewater amount is large, the application of wastewater and pure water is inflexible, the running mode of the water purification system is single, the water supply requirement of the dish washing machine can be met only by frequently purifying tap water, and the water consumption of the tap water is large.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a water purification system, which solves the problems that the purified water quantity of the water purification system is limited, the residual waste water quantity is large, the operation mode of the water purification system is single, the water supply requirement of a dish washing machine can be met only by frequently purifying tap water, and the water consumption is large.

The utility model also provides a dishwasher.

A water purification system according to an embodiment of a first aspect of the utility model, for a dishwasher, comprises:

the outlet of the pure water tank is suitable for being communicated with a water supply pipeline of the dishwasher;

a wastewater tank;

a purification device configured with a first water outlet in communication with the inlet of the pure water tank and a second water outlet in communication with the inlet of the wastewater tank;

the outlet of the waste water tank is suitable for being switched between communication with the water inlet of the purification device and communication with the outer discharge pipeline through the first communication assembly.

According to the water purification system provided by the embodiment of the utility model, tap water is purified and cleaning water is provided for the dish washing machine, the tap water is introduced into the purification device and purified to obtain wastewater and pure water, the pure water enters the pure water tank after being discharged through the first water outlet and the second water outlet, the wastewater enters the wastewater tank, and the water in the pure water tank enters the water supply pipeline of the dish washing machine to clean tableware in the dish washing machine. First intercommunication subassembly can form the rivers route between waste water tank and purifier and the outer pipeline of arranging to the break-make of control rivers route, waste water tank can select to directly arrange waste water to the kitchen sewer pipeline through outer pipeline of arranging promptly, still can directly let in purifier, once more with the running water participate in purifying with the running water purification, reduce the direct outer discharge capacity of waste water, save the running water quantity of purification usefulness, avoid water waste.

The water purification system of this embodiment is applied to the pure water supply of dish washer, realizes through first intercommunication subassembly that purifier and outer discharge pipe way and the water flow path between the waste water tank change to the cooperation water purification system accomplishes under the multiple operational mode to the different treatment demands of waste water, can adapt to more water schemes, the water under the different modes of washing dishes of more nimble cooperation dish washer, and improved the play water utilization efficiency of dish washer to water purification system.

According to an embodiment of the utility model, the outlet of the waste water tank is further adapted to be switched in communication with the water inlet of the purification device, with the outer discharge line and with the water supply line of the dishwasher by means of the first communication assembly.

According to one embodiment of the utility model, the outlet of the deionized water tank is adapted to be switched in communication with the outer discharge line and in communication with the water supply line of the dishwasher by means of a second communication assembly.

According to an embodiment of the utility model, the outlet of the plain water tank is further adapted to be switched by the second communication assembly between communication with the outer discharge line, communication with the water supply line of the dishwasher and communication with the water inlet of the purification device.

According to one embodiment of the utility model, the inlet of the waste water tank is also in communication with a source of tap water.

According to one embodiment of the utility model, the inlet of the pure water tank is also communicated with a tap water source.

According to one embodiment of the utility model, the water inlet of the purification device comprises a first water inlet and a second water inlet, the first water inlet and the second water inlet are communicated with a tap water source through a first flow control element and a second flow control element, respectively.

According to one embodiment of the utility model, the purification device is at least one of a capacitive desalination device, an electrodialysis device, a bipolar electrodialysis device and an electrodeionization device.

According to one embodiment of the utility model, the purification device is an electrodialysis device comprising:

a membrane stack comprising a separator plate and a plurality of dialysis membrane pairs adapted for the passage of tap water and for the dialysis treatment of tap water flowing therethrough; the partition plate is arranged between the dialysis membrane pairs, and a liquid passing channel is arranged on the partition plate.

The dishwasher according to an embodiment of the second aspect of the present invention includes:

a water purification system as described above.

One or more technical solutions in the embodiments of the present invention at least have one of the following technical effects:

the water purification system is used for purifying tap water and providing cleaning water for the dish washing machine, tap water is introduced into the purification device to be purified and purified to obtain waste water and pure water, the pure water enters the pure water tank after being discharged through the first water outlet and the second water outlet, the waste water enters the waste water tank, and water in the pure water tank enters the water supply pipeline of the dish washing machine to clean tableware in the dish washing machine. The first communicating component can form a water flow passage between the waste water tank and the purifying device and between the waste water tank and the outer discharge pipeline, and controls the on-off of the water flow passage, namely the waste water tank can select waste water to be directly discharged to a kitchen sewer pipeline through the outer discharge pipeline, and can also be directly introduced into the purifying device to participate in purification with tap water again, so that the direct external discharge of the waste water is reduced, the tap water consumption for purification is saved, and the waste of water resources is avoided.

The water purification system of this embodiment is applied to the pure water supply of dish washer, realizes through first intercommunication subassembly that purifier and outer discharge pipe way and the water flow path between the waste water tank change to the cooperation water purification system accomplishes under the multiple operational mode to the different treatment demands of waste water, can adapt to more water schemes, the water under the different modes of washing dishes of more nimble cooperation dish washer, and improved the play water utilization efficiency of dish washer to water purification system.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

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

Fig. 1 is a schematic structural diagram of a water purification system according to an embodiment of the present invention;

fig. 2 is a second schematic structural diagram of a water purification system according to an embodiment of the present invention;

fig. 3 is an exploded view of a membrane stack of a water purification system provided by an embodiment of the present invention;

fig. 4 is an exploded view of an electrodialysis unit of a water purification system according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a first baffle of a membrane stack of a water purification system provided by an embodiment of the utility model;

fig. 6 is a schematic structural diagram of a second flow guide plate of a membrane stack of a water purification system provided by an embodiment of the utility model;

fig. 7 is a schematic structural diagram of a separator plate of a membrane stack according to an embodiment of the present invention.

Reference numerals:

100. a membrane module; 110. a pair of dialysis membranes; 111. a first baffle; 112. a second baffle; 113. a cation exchange membrane; 114. an anion exchange membrane; 1111. a first drainage channel; 1112. a first drain hole; 1113. a first grid channel; 1114. a third drain hole; 1121. a second drainage channel; 1122. a second drain hole; 1123. a second grid channel; 1124. a fourth drainage hole;

200. a partition plate; 210. a liquid passing channel; 211. a third grid channel; 212. a first liquid passing hole; 213. a second liquid passing hole;

300. stacking the films;

410. a first splint; 411. a first water inlet; 412. a second water inlet; 420. a second splint; 421. a first water outlet; 422. a second water outlet;

510. a first electrode plate; 520. a second electrode plate; 600. an insulating plate; 700. a purification device; 810. a pure water tank; 820. a wastewater tank;

910. a first communication assembly; 911. a first main pipeline; 912. a first branch line; 913. a second branch pipe; 914. a first valve body; 915. a second valve body;

920. a second communicating member; 921. a second main pipeline; 922. a third branch pipeline; 923. a fourth branch pipeline; 924. a third valve body; 925. a fourth valve body; 932. a fifth branch pipeline; 933. a sixth branch pipeline; 934. a fifth valve body; 935. a sixth valve body;

950. a first flow control; 951. a first water inlet pipe; 952. a first flow valve;

960. a second flow control; 961. a second water inlet pipe; 962. a second flow valve;

970. a source of tap water;

1100. a dishwasher.

Detailed Description

Embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "front", "back", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only used for convenience in describing the embodiments of the present invention and for simplicity in description, but do not indicate or imply that the devices or elements referred to must have specific orientations, be constructed in specific orientations, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention may be understood as specific cases by those of ordinary skill in the art.

In embodiments of the utility model, unless expressly stated or limited otherwise, a first feature may be "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediary. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

As shown in fig. 1, a water purification system provided by an embodiment of the present invention is applied to a dishwasher 1100, and includes a pure water tank 810, a waste water tank 820, and a purification apparatus 700; the outlet of the plain water tank 810 is adapted to communicate with the water supply line of the dishwasher 1100; the purification device 700 is configured with a first water outlet 421 and a second water outlet 422, the first water outlet 421 is communicated with the inlet of the pure water tank 810, and the second water outlet 422 is communicated with the inlet of the waste water tank 820; an outlet of the waste water tank 820 is adapted to be switched in communication with a water inlet of the purification apparatus 700 and in communication with an external discharge line by the first communication member 910.

The water purification system of the embodiment of the utility model is used for purifying tap water and providing cleaning water for the dishwasher 1100, tap water is introduced into the purification device 700 to be purified and purified to obtain wastewater and pure water, the pure water enters the pure water tank 810 after being discharged through the first water outlet 421 and the second water outlet 422, the wastewater enters the wastewater tank 820, and the water in the pure water tank 810 enters the water supply pipeline of the dishwasher 1100 to clean tableware in the dishwasher 1100. The first communicating component 910 can form a water flow path between the waste water tank 820 and the purifying device 700 and the external discharge pipeline, and control the on-off of the water flow path, that is, the waste water tank 820 can selectively discharge waste water directly to the kitchen sewer pipeline through the external discharge pipeline, and can also be directly introduced into the purifying device 700 to participate in purification with tap water again, thereby reducing the direct external discharge of waste water, saving the tap water consumption for purification, and avoiding water waste.

If the purification device 700 uses wastewater in the process of purifying tap water, the first communicating component 910 is controlled to disconnect the water flow path entering the external discharge pipeline and communicate the water flow path entering the purification device 700; if the purification apparatus 700 does not use wastewater in the process of purifying tap water, the first connection module 910 is controlled to connect the water flow path entering the external discharge pipeline, and the water flow path entering the purification apparatus 700 is disconnected.

The water purification system of this embodiment is applied to dishwasher 1100's pure water supply, realizes through first intercommunication subassembly 910 that purifier 700 and outer discharge line and the change of water flow path between the waste water tank 820 to the cooperation water purification system accomplishes the different treatment demands to waste water under the multiple operation mode, can adapt to more water schemes, and the different water use under the mode of washing dishes of cooperation dishwasher 1100 that is more nimble, and improved dishwasher 1100 and utilized efficiency to water purification system's play water.

As shown in fig. 2, according to an embodiment of the present invention, the outlet of the waste water tank 820 is further adapted to be switched in communication with the water inlet of the purification apparatus 700, in communication with the outer discharge line and in communication with the water supply line of the dishwasher 1100 through the first communication member 910. In this embodiment, the waste water in the waste water tank 820 is optionally directly arranged outward, also can choose directly to let in purifier 700, still can choose the water supply pipeline that lets in dishwasher 1100, waste water tank 820 passes through dishwasher 1100's water supply pipeline with waste water promptly, provide the cleaning water for dishwasher 1100, use in the different demands to quality of water of the different cleaning processes of dishwasher 1100, when improving dishwasher 1100's clean ability, can also reduce the direct outer discharge capacity of waste water, avoid the water waste, save dishwasher 1100's pure water quantity, and then save the running water quantity of purification usefulness. Meanwhile, the number of times of using the purification device 700 can be reduced, and the service life of the purification device is prolonged.

According to the requirement of the dishwasher 1100 for wastewater, the first communicating component 910 is controlled to be correspondingly turned on and off, so that the wastewater discharge can be selected differently. If the dishwasher 1100 uses wastewater in a washing process, the first communicating member 910 is controlled to disconnect the water flow path of the wastewater tank 820 entering the discharge pipeline and the purification apparatus 700 and communicate the water flow path entering the water supply pipeline of the dishwasher 1100; if the dishwasher 1100 does not use waste water during the washing process, the first communicating member 910 is controlled to communicate the waste water tank 820 to the external discharge line and the water flow path of the purification apparatus 700, and to disconnect the water flow path to the water supply line of the dishwasher 1100.

In another embodiment, the on/off control of the water flow path between the waste water tank 820 and the purification apparatus 700 by the first communication assembly 910 may not be based on the actual waste water requirement of the dishwasher 1100, and the water flow path between the waste water tank 820 and the purification apparatus 700 may be always in communication regardless of whether the dishwasher 1100 needs to be washed by waste water.

According to one embodiment of the present invention, the outlet of the deionized water tank 810 is adapted to be switched in communication with the outer discharge line and in communication with the water supply line of the dishwasher 1100 by the second communication assembly 920. In this embodiment, the first water outlet 421 and the second water outlet 422 of the purification apparatus 700 have different outlet types, and the outlet types of the water entering the pure water tank 810 and the waste water tank 820 are different. That is, when the first water outlet 421 discharges wastewater and the second water outlet 422 discharges pure water, the pure water tank 810 is filled with wastewater, and at this time, the pure water tank 810 is used as the wastewater tank 820, the wastewater tank 820 is filled with pure water, and the wastewater tank 820 is used as the pure water tank 810. Second intercommunication subassembly 920 can form the rivers route between pure water case 810 and dish washer 1100 and the outer pipeline of arranging to the break-make of control rivers route, pure water case 810 can select directly to arrange the kitchen sewer pipeline with waste water through outer pipeline of arranging promptly, still can be when dish washer 1100 chooses to use waste water to carry out abluent operational mode, directly lets in waste water in the water supply pipeline of dish washer 1100, reduces the direct outer discharge capacity of waste water.

When the first water outlet 421 discharges wastewater and the second water outlet 422 discharges pure water, the first communicating component 910 is controlled to disconnect the water flow paths of the wastewater tank 820 and the outer discharge pipeline and communicate the water flow paths entering the purifying device 700, and if the dishwasher 1100 uses wastewater in the cleaning process, the second communicating component 920 is controlled to disconnect the water flow paths of the pure water tank 810 and the outer discharge pipeline and open the water flow paths entering the water supply pipeline of the dishwasher 1100; if the dishwasher 1100 does not use waste water in the cleaning process, the second communication assembly 920 is controlled to communicate the pure water tank 810 with the water flow passage of the outer discharge pipeline to be opened, and the water flow passage of the water supply pipeline entering the dishwasher 1100 is cut off.

The water purification system of this embodiment is applied to pure water supply of the dishwasher 1100, and the pure water tank 810 and the wastewater tank 820 do not necessarily receive water according to the designated water containing type, and the designated water containing type of the pure water tank 810 and the wastewater tank 820 may also be adjusted according to the actual water outlet type of the first water outlet 421 and the second water outlet 422 of the purification apparatus 700, that is, the pure water tank 810 is adjusted to receive wastewater as the wastewater tank 820, and the wastewater tank 820 is adjusted to receive pure water as the pure water tank 810. Further improving the adaptability of the water purification system to different operating conditions of the dishwasher 1100 and the flexibility of the water supply application. Through first intercommunication subassembly 910 and second intercommunication subassembly 920, cooperation waste water and pure water realize multiple operation mode at the first delivery port 421 of purifier 700 and the delivery port conversion of second delivery port 422 when pure water case 810 gets into different grade type play water with waste water case 820, and water purification system can adapt to more water schemes, and the different water under the mode of washing dishes of cooperation dish washer 1100 that is more nimble to dish washer 1100 has improved the play water utilization efficiency to water purification system.

According to one embodiment of the present invention, the outlet of plain water tank 810 is further adapted to be switched by second communication assembly 920 between communication with the outer discharge line, communication with the water supply line of dishwasher 1100 and communication with the water inlet of purification apparatus 700. In this embodiment, the waste water in the pure water case 810 can select directly to arrange outward, also can select to let in the water supply pipe of dish washer 1100, still can select directly to let in purifier 700, participates in with the running water once more and purifies the purification, reduces the direct outer discharge capacity of waste water, saves the running water quantity of purification usefulness, avoids the water waste.

If the purification device 700 uses wastewater in the process of purifying tap water, the second communication component 920 is controlled to disconnect the water purification tank 810 from the water flow passage entering the external discharge pipeline and the dishwasher 1100 and to communicate the water flow passage entering the purification device 700; if the purification apparatus 700 does not use waste water in the process of purifying the tap water, the second communication assembly 920 is controlled to communicate the water flow path entering the external discharge pipeline and the dishwasher 1100, and the water flow path entering the purification apparatus 700 is cut off.

In one embodiment, the on/off control of the water flow path between the pure water tank 810 and the purification apparatus 700 by the second communication component 920 may not be based on the actual wastewater requirement of the dishwasher 1100, and the water flow path between the pure water tank 810 and the purification apparatus 700 may be always in communication regardless of whether the dishwasher 1100 needs to be cleaned by wastewater.

In another embodiment, the on-off control of the water flow path between the pure water tank 810 and the purification apparatus 700 by the second communication component 920 may not be based on the actual water inlet type of the pure water tank 810, and the water flow path between the pure water and the purification apparatus 700 may always be communicated regardless of whether the dishwasher 1100 is feeding pure water or waste water, and the pure water may also be returned to the purification apparatus 700 to be mixed with tap water for purification.

The water purification system of this embodiment is applied to dishwasher 1100's pure water supply, realize purifier 700 through second intercommunication subassembly 920, dishwasher 1100 and the water flow path between outer discharge line and the pure water case 810 changes, to the different treatment demands to pure water case 810 water-logging under the multiple operation mode is accomplished to cooperation water purification system, can adapt to more water schemes, the different water under the mode of washing dishes of cooperation dishwasher 1100 that is more nimble, and dishwasher 1100 has improved the play water utilization efficiency to water purification system. Pure water case 810 lets in purifier 700 with waste water promptly, uses in the different demands to quality of water of the cleaning process that dishwasher 1100 is different, for dishwasher 1100 provides the washing water, when improving dishwasher 1100's clean ability, can also reduce the direct external discharge volume of waste water, avoids water waste, saves dishwasher 1100's pure water quantity, and then saves the running water quantity of purification usefulness. Meanwhile, the number of times of using the purification device 700 can be reduced, and the service life of the purification device is prolonged.

According to one embodiment of the utility model, the inlet of the waste water tank 820 is also in communication with a source of tap water. In this embodiment, the inlet of the waste water tank 820 is connected to the second water outlet 422 of the purification apparatus 700, and is also connected to the tap water source 970, so as to enter tap water, the tap water directly enters the waste water tank 820 for storage, the waste water flowing out of the purification apparatus 700 enters the waste water tank 820 to be mixed with the tap water, the hardness of the mixed waste water can be reduced, and the requirement for the hardness of the waste water during washing by using the waste water in the cleaning process of the dishwasher 1100 can be further met, the use frequency of the purification apparatus 700 can be reduced, and the service life of the purification apparatus can be prolonged.

The inlet of the purified water tank 810 is also in communication with a source of tap water 970, according to one embodiment of the utility model. In this embodiment, the inlet of the pure water tank 810 is connected to the first water outlet 421 of the purification apparatus 700, and is also connected to the tap water source 970, so that tap water enters the pure water tank 810 directly and is stored, and the wastewater flowing out of the purification apparatus 700 enters the pure water tank 810 and is mixed with the tap water, so that the hardness of the wastewater can be reduced by the mixed wastewater, thereby meeting the hardness requirement of the dishwasher 1100 on the wastewater during the washing process by using the wastewater, reducing the use times of the purification apparatus 700, and prolonging the service life of the purification apparatus.

In this embodiment, each communicating component is in a form of combining a pipeline and a valve body, and the valve body controls the on-off of the pipeline, so that the on-off of a water flow passage formed by the communication of the pipelines is controlled. The first communicating component 910 and the second communicating component 920 each include a valve body, a main pipeline and three branch pipelines, one end of each branch pipeline is communicated with one end of the main pipeline, and each branch pipeline is provided with a valve body.

In one embodiment, the first communicating assembly 910 includes a first main conduit 911, a first branch conduit 912, a second branch conduit 913 and a third branch conduit 922, and a first valve body 914 disposed on the first branch conduit 912, a second valve body 915 disposed on the second branch conduit 913 and a third valve body 924 disposed on the third branch conduit 922. One end of the first main pipeline 911 is communicated with an outlet of the wastewater tank 820, the other end of the first main pipeline is connected with one end of the first branch pipeline 912, one end of the second branch pipeline 913 and one end of the third branch pipeline 922, the other end of the first branch pipeline 912 is communicated with a water inlet of the purifying device 700, the other end of the second branch pipeline 913 is communicated with an outer discharge pipeline, and the other end of the third branch pipeline 922 is communicated with a water supply pipeline of the dishwasher 1100. The on-off or opening degree of the first branch pipe 912, the second branch pipe 913 and the third branch pipe 922 is controlled by the first valve body 914, the second valve body 915 and the third valve body 924, so that the on-off and flow rate of the water flow paths between the waste water tank 820 and the purification device 700, between the external discharge pipe and the dishwasher 1100 are controlled.

In one embodiment, second communication assembly 920 includes a second main conduit 921, a fourth branch conduit 923, a fifth branch conduit 932, and a sixth branch conduit 933, as well as a fourth valve body 925 disposed on fourth branch conduit 923, a fifth valve body 934 disposed on fifth branch conduit 932, and a sixth valve body 935 disposed on sixth branch conduit 933. One end of the second main pipeline 921 is communicated with an outlet of the pure water tank 810, the other end of the second main pipeline is connected with one end of the fourth branch pipeline 923, one end of the fifth branch pipeline 932 and one end of the sixth branch pipeline 933, the other end of the fourth branch pipeline 923 is communicated with a water inlet of the purification device 700, the other end of the fifth branch pipeline 932 is communicated with an external discharge pipeline, and the other end of the sixth branch pipeline 933 is communicated with a water supply pipeline of the dishwasher 1100. The on-off or opening degree of the fourth branch pipe 923, the fifth branch pipe 932 and the sixth branch pipe 933 is controlled by the fourth valve body 925, the fifth valve body 934 and the sixth valve body 935, so that the on-off and flow rate of the water flow passages between the pure water tank 810 and the purification device 700, between the external discharge pipe and the dishwasher 1100 are controlled.

According to one embodiment of the present invention, the water inlets of the purification apparatus 700 include a first water inlet 411 and a second water inlet 412, and the first water inlet 411 and the second water inlet 412 are respectively communicated with a tap water source 970 through a first flow control member 950 and a second flow control member 960. In this embodiment, the tap water enters the purification apparatus 700 through the first water inlet 411 and the second water inlet 412, and enters the purification apparatus 700 to be purified and divided into two water paths, i.e., pure water and wastewater. Under the condition of ensuring the smooth continuous water inlet of the purification device 700, the flow of the tap water entering the purification device 700 from the first water inlet 411 and the second water inlet 412 is adjusted by the first flow control member 950 and the second flow control member 960 respectively.

In this embodiment, the first flow control member 950 includes a first water inlet pipe 951 and a first flow valve 952, the second flow control member 960 includes a second water inlet pipe 961 and a second flow valve 962, and the flow rates of the tap water in the first water inlet pipe 951 and the second water inlet pipe 961 are adjusted by changing the opening degrees of the first flow valve 952 and the second flow valve 962, so as to meet the demand of the purification apparatus 700 for the consumption of the tap water entering the purification apparatus under different operating conditions.

When in use, the valve bodies are not limited to stop valves, electric valves, electromagnetic valves or other valves capable of being opened and closed.

According to one embodiment of the present invention, the purification apparatus 700 is at least one of a capacitive desalination apparatus, an electrodialysis apparatus, a bipolar electrodialysis apparatus, and an electrodeionization apparatus. In this embodiment, the purification device 700 employs at least one of a capacitive desalination device, an electrodialysis device, a bipolar electrodialysis device, and an electrodeionization device, and can remove ionic components that are easily scaled in water, thereby improving the efficiency of the dish washing machine 1100 for cleaning tableware, and promoting the experience of customers due to no salt regeneration in the use process.

In one embodiment, the purification device 700 is an electrodialysis device, and the specific operation scheme of the water purification system applied to the dishwasher 1100 is as follows for the dish cleaning process of the dishwasher 1100:

scheme 1: the flow rate of pure water is set to 300mL/min, the flow rate of wastewater is set to 100mL/min, the voltage is set to 30V, 250ppm is adopted, and the hardness of effluent is 150 ppm. The water tank of adoption is 3.5L, and the one minute can the water receiving reach 3L, and when dish washer 1100 moved, this 3L water got into that dish washer 1100 is inside washs the tableware, and EDR module system water was used when keeping the next cleaning program in the water tank when dish washer 1100 washd the tableware and was preserved. The service life of the scheme is 2 years of cleaning.

Scheme 2: the flow rate of pure water is set to 300mL/min, the flow rate of wastewater is set to 100mL/min, the voltage is set to 30V, 250ppm is adopted, and the hardness of effluent is 150 ppm. The water tank of adoption is 3.5L, and the one minute can the water receiving reach 3L, and when dish washer 1100 moved, this 3L water got into that dish washer 1100 is inside washs the tableware, and EDR module system water was used when keeping the next cleaning program in the water tank when dish washer 1100 washd the tableware and was preserved. The service life of the scheme is 1 year cleaning.

Scheme 2: the flow rate of pure water is set to 300mL/min, the flow rate of wastewater is set to 300mL/min, the voltage is set to 30V, 250ppm is adopted, and the hardness of effluent is 100 ppm. The water tank of adoption is 3.5L, and one minute can receive the water and reach 3L, and dish washer 1100 moves, and this 3L water gets into that dish washer 1100 is inside to wash the tableware, and dish washer 1100 washes the use when EDR module system water and save and leave next cleaning program in the water tank when the tableware. The service life of the scheme is 3 years of cleaning.

As shown in fig. 3 and 4, according to one embodiment of the present invention, the purification apparatus 700 is an electrodialysis apparatus, the electrodialysis apparatus comprising a membrane stack 300, the membrane stack 300 comprising a separation plate 200 and a plurality of dialysis membrane pairs 110, the dialysis membrane pairs 110 being adapted for circulation of tap water and for subjecting tap water flowing therethrough to a dialysis treatment; the partition plate 200 is arranged between the pair of dialysis membranes 110, and the partition plate 200 is provided with a liquid passing channel 210.

In this embodiment, the partition plate is provided in the plurality of dialysis membrane pairs 110 to partition the dialysis membrane pair 110 into the plurality of membrane modules 100, that is, the plurality of membrane modules 100 are sequentially arranged, and the partition plate 200 is provided between two adjacent membrane modules 100, so that the membrane modules 100 perform dialysis treatment on tap water to separate ions in the tap water, and thus the tap water is divided into two paths of pure water and wastewater while flowing through the membrane modules 100. The arrangement of the plurality of membrane modules 100 can realize multi-stage dialysis treatment of tap water after passing through the plurality of membrane modules 100, dialysis is more sufficient, ion separation in the tap water is more complete, and the purity of pure water obtained after being treated by the plurality of membrane modules 100 is higher. When tap water is treated in one of the membrane modules 100 and then sequentially enters the next membrane module 100 adjacent to the membrane module 100, the liquid passing channel 210 of the partition plate 200 realizes the flow of the tap water between the two adjacent membrane modules 100, the tap water flows out from the previous membrane module 100 and enters the next membrane module 100 through the liquid passing channel 210 of the partition plate 200, the osmotic pressure in the membrane modules 100 is further improved, so that the dialysis effect is improved, the pressure of the tap water flowing out from one membrane module 100 is changed, namely, the flow speed and impact of the tap water entering the membrane module 100 are improved, the turbulent flow effect of the tap water entering the membrane module 100 is achieved, and the dialysis effect of the tap water in the membrane module 100 is further improved. Solves the problems that the electrodialysis device is influenced by the number of cation and anion exchange membranes, the dialysis efficiency is limited, the effect is poor, and tap water after dialysis can not meet the requirements.

In this embodiment, the membrane stack includes three membrane modules 100 and two separation plates 200 in total, that is, the two separation plates 200 divide all the membrane modules 100 into three. In other embodiments, the number of the partition plates 200 and the number of the membrane modules 100 are adjusted and determined according to actual needs. The connection mode of the tap water passages among the membrane modules 100 is series connection, and the shape of the partition plate 200 can be adjusted according to the actual membrane stack requirement and the tap water dialysis requirement.

In the embodiment, the flow range of the pure water and the wastewater obtained after the membrane reactor dialysis treatment is 10mL/min-10L/min, the ratio of the pure water to the wastewater is 1: 1-5: 1, and the hardness removal rate of the obtained pure water relative to tap water is 10% -90%.

As shown in fig. 5 and fig. 6 in this embodiment, one dialysis membrane pair 110 is composed of a pair of ion dialysis parts and a pair of flow guide plates, the pair of dialysis parts includes a cation exchange membrane 113 and an anion exchange membrane 114, the pair of flow guide plates includes a first flow guide plate 111 and a second flow guide plate 112, which are parallel to each other and are disposed oppositely, the first flow guide plate 111 and the second flow guide plate 112 are disposed oppositely, the first liquid guide hole 1112 and the second liquid guide channel 1121 are correspondingly communicated to form a first passage, and the first liquid guide channel 1111 and the second liquid guide hole 1122 are also correspondingly communicated to form a second passage. The first liquid guiding channel 1111 of the first flow guiding plate 111 is not communicated with the two sets of first liquid guiding holes 1112, and the second liquid guiding channel 1121 of the second flow guiding plate 112 is not communicated with the two sets of second liquid guiding holes 1122.

In the overall membrane module 100, the anion exchange membranes 114 and the cation exchange membranes 113 are alternately arranged in sequence, tap water is dialyzed and ion-separated through the anion exchange membranes 114 and the cation exchange membranes 113 in the process of flowing in the dialysis membrane pair 110, and a wastewater passage and a pure water passage are effectively constructed in the membrane module 100 through the first guide plate 111 and the second guide plate 112, so that tap water with different ion concentrations after dialysis flows in different passages.

In a dialysis membrane pair 110, in the case that a first guide plate 111 and a second guide plate 112 are fixed in position and order, in one embodiment, when an anion exchange membrane 114 is disposed between the first guide plate 111 and the second guide plate 112, a cation exchange membrane 113 is disposed on the other side of the second guide plate 112. In another embodiment, when the cation exchange membrane 113 is disposed between the first and second guide plates 111 and 112, the anion exchange membrane 114 is disposed on the other side of the second guide plate 112. In the whole membrane stack, ion separation chambers are formed between the ion dialysis parts, the flow guide part is positioned in the chambers and takes away waste water with separated ions or pure water with separated ions, so that the separation chambers constructed between the anion exchange membranes 114 and the cation exchange membranes 113 in the membrane stack are clear, the ion separation effect is ensured, and the alternative arrangement of the anion exchange membranes 114 and the cation exchange membranes 113 in the whole membrane stack is required to be ensured.

In this embodiment, the membrane stack comprises 24 pairs of dialysis membrane pairs 110, and is divided into three membrane modules 100 by two partition plates 200, and each membrane module 100 comprises eight pairs of dialysis membrane pairs 110. In other embodiments, the overall number of dialysis membrane pairs 110, and the number of dialysis membrane pairs 110 included in each membrane module 100, can be adjusted according to actual needs. The shape of each guide plate can be adjusted according to dialysis requirements.

As shown in fig. 7, in this embodiment, the liquid passing channel 210 of the partition plate 200 is composed of one grid channel and two liquid passing holes, the partition plate 200 is disposed between two adjacent membrane modules 100, that is, the last first guide plate 111 of one membrane module 100 and the first second guide plate 112 of the other membrane module 100 are respectively disposed on both sides of the partition plate 200, the first liquid passing hole 212 is used to communicate the first group of second liquid guiding holes 1122 of the second guide plate 112 with the third liquid guiding holes 1114 of the first guide plate 111 as an inlet, and the second liquid passing hole 213 is used to communicate the fourth liquid guiding holes 1124 of the second guide plate 112 as an outlet with the first group of first liquid guiding holes 1112 of the first guide plate 111. The third grid passage 211 is disposed at a position corresponding to the first grid passage 1113 and the second grid passage 1123, so as to further assist the dialysis of the tap water in the first grid passage 1113 by the electrodialysis members at the two sides of the first baffle 111.

In this embodiment, the first liquid passing hole 212, the second liquid passing hole 213 and the third grid channel 211 are not communicated with each other. In other embodiments, the liquid passing channel 210 may only have the first liquid passing hole 212 and the second liquid passing hole 213, so as to ensure that the tap water in the first passage and the second passage formed by all the baffles can flow.

In the electrodialysis device according to the embodiment of the utility model, the first electrode plate 510 and the second electrode plate 520 can be respectively electrified to form a positive electrode plate and a negative electrode plate, the first electrode plate 510 is disposed on one side of the membrane stack 300, and the second electrode plate 520 is disposed on the other side of the membrane stack 300. The first clamping plate 410 is crimped on the first electrode plate 510, the second clamping plate 420 is crimped on the second electrode plate 520, so that the membrane stack 300 is fixed, and the clamping plates are respectively crimped on one sides of the first electrode plate 510 and the second electrode plate 520 far away from the membrane stack 300, so that stable pre-pressure is continuously applied to the membrane stack 300 and the electrode plates, long-time operation of the electrodialysis device is ensured, liquid leakage risk is reduced, and the reliability of the electrodialysis device is improved. An insulating plate 600 is arranged between the first clamping plate 410 and the first electrode plate 510, an insulating plate 600 is also arranged between the second clamping plate 420 and the second electrode plate 520, the insulating plate 600 is used for preventing the positive electrode plate or the negative electrode plate from leaking electricity to the outside in the using process, the first electrode plate 510 and the second electrode plate 520 are isolated from the outside through the insulating plate 600, and the reliability of the electrodialysis device is effectively improved. Solves the problems that the electrodialysis device is influenced by the number of the anion-cation exchange membranes 113, the dialysis efficiency is limited, the effect is poor, and tap water after dialysis cannot meet the use requirement.

When the electrodialysis device works, tap water is divided into two paths through the first water inlet 411 and the second water inlet 412 of the first clamping plate 410 and enters the first path and the second path of the membrane stack 300, and the tap water flows out from the first water outlet 421 and the second water outlet 422 of the second clamping plate 420 after dialysis is finished. The direction of the positive and negative electrodes at both sides of the membrane stack 300 can be changed by controlling the first electrode plate 510 and the second electrode plate 520, so as to change the moving direction of the positive and negative ions in the tap water, thereby affecting the content of the ions in the tap water in the chamber formed between the ion dialyzates, i.e. controlling the shade property of the tap water flowing through the first channel and the second channel in the membrane stack 300, thereby changing the property of the tap water flowing out of the first water outlet 421 and the second water outlet 422. Effectively prevent the scale formation of the ion exchange membrane and the electrode, play a role of self-cleaning, improve the utilization efficiency of the electrodialysis device and prolong the service life of the electrodialysis device.

Embodiments of the present invention also provide a dishwasher 1100 including the water purification system as described in the above embodiments.

In this embodiment, the pure water tank 810 of the water purification system is communicated with the water supply pipeline of the dishwasher 1100, and the outlet of the waste water tank 820 is selectively communicated with the dishwasher 1100. More choices are provided for the water consumption of the dishwasher 1100 in the washing process, and the purification system can obviously improve the purification efficiency of tap water, so that the water supply efficiency of the dishwasher 1100 is improved, various operation modes are provided, and water resources are saved.

The above embodiments are merely illustrative of the present invention and are not to be construed as limiting the utility model. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications and equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims of the present invention.

Claims (10)

1. A water purification system, its characterized in that: for a dishwasher, comprising:

the outlet of the pure water tank is suitable for being communicated with a water supply pipeline of the dishwasher;

a wastewater tank;

a purification device configured with a first water outlet in communication with the inlet of the pure water tank and a second water outlet in communication with the inlet of the wastewater tank;

the outlet of the waste water tank is suitable for being switched between communication with the water inlet of the purification device and communication with the outer discharge pipeline through the first communication assembly.

2. The water purification system of claim 1, wherein the outlet of the waste water tank is further adapted to be switched by the first communication assembly between communication with the water inlet of the purification device, communication with the outer discharge line and communication with the water supply line of the dishwasher.

3. The water purification system of claim 2, wherein the outlet of the plain water tank is adapted to be switched in communication with the outer discharge line and in communication with the water supply line of the dishwasher by a second communication assembly.

4. The water purification system of claim 3, wherein the outlet of the plain water tank is further adapted to be switched by the second communication assembly between communication with the outer discharge line, communication with the water supply line of the dishwasher, and communication with the water inlet of the purification device.

5. The water purification system of claim 1, wherein the inlet of the waste water tank is further in communication with a source of tap water.

6. The water purification system of claim 1, wherein the inlet of the purified water tank is further in communication with a source of tap water.

7. The water purification system of any one of claims 1 to 6, wherein the water inlet of the purification apparatus comprises a first water inlet and a second water inlet, the first and second water inlets being in communication with a source of tap water via first and second flow controls, respectively.

8. The water purification system of any one of claims 1 to 6, wherein the purification device is at least one of a capacitive desalination device, an electrodialysis device, a bipolar electrodialysis device and an electrodeionization device.

9. The water purification system of any one of claims 1 to 6, wherein the purification device is an electrodialysis device comprising:

a membrane stack comprising a separation plate and a plurality of dialysis membrane pairs adapted to perform dialysis treatment on tap water flowing therethrough; the partition plate is arranged between the dialysis membrane pairs, and a liquid passing channel is arranged on the partition plate.

10. A dishwasher, comprising:

a water purification system as claimed in any one of claims 1 to 9.

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