CN219950539U

CN219950539U - Water purifying device

Info

Publication number: CN219950539U
Application number: CN202321164017.1U
Authority: CN
Inventors: 慕凡; 魏礼松; 李俊超
Original assignee: AO Smith China Water Heater Co Ltd; AO Smith China Environmental Products Co Ltd
Current assignee: AO Smith China Water Heater Co Ltd; AO Smith China Environmental Products Co Ltd
Priority date: 2023-05-12
Filing date: 2023-05-12
Publication date: 2023-11-03
Anticipated expiration: 2033-05-12

Abstract

The utility model relates to a water purifying device, which comprises a water inlet, a water supply port, a heating device, a heat exchange device, a water treatment device and a flushing water pipeline, wherein the water inlet is communicated with the water supply port; the heat exchange device is provided with a first flow passage and a second flow passage, the first flow passage is provided with at least a first inlet and a first outlet, the second flow passage is provided with at least a second inlet and a second outlet, the first inlet is connected with the outlet of the heating device, the first outlet is connected with the water supply port, the second inlet is connected with the water inlet port, and the second outlet is connected with the inlet of the heating device; the water treatment device is arranged between the second inlet and the water inlet port; the inlet of the flushing water pipeline is connected with the first outlet, and the outlet of the flushing water pipeline is connected with the water inlet of the water treatment device or the water outlet of the water treatment device. The utility model can flush and sterilize the filter element in the water treatment device, does not need to adjust or replace the filter element of the filter element, saves the cost and improves the safety of water.

Description

Water purifying device

Technical Field

The utility model relates to the field of water purifying equipment, in particular to a water purifying device.

Background

The water purification device commonly used in the market is only provided with a filter element on a water inlet pipeline, so that the purification of the inlet water is realized, but after long-term use, the filter element (especially a rear filter element) has impurity accumulation and bacteria breeding, if the water purification effect is not affected by timely treatment, even hidden danger of water quality safety can be generated, the current common technical means mainly depends on the activated carbon with better activated carbon quantity or replacement performance in the filter element, the impurity in the filter element is removed, the sterilization effect is poor, the volume of the filter element in the filter element is increased, and the cost is increased.

Therefore, the inventor proposes a water purifying device by virtue of experience and practice of related industries for many years so as to overcome the defects of the prior art.

Disclosure of Invention

The utility model aims to provide the water purifying device which can flush and sterilize the filter element, does not need to adjust or replace the filter element of the filter element, saves the cost, ensures that bacterial colonies in water at any time meet the standard, and improves the safety of water.

The object of the utility model can be achieved by the following scheme:

the present utility model provides a water purifying apparatus, comprising:

a water inlet port;

a water supply port;

a heating device for heating a liquid flowing through the inside of the heating device;

a heat exchange device having a first flow passage and a second flow passage capable of exchanging heat of a liquid flowing through the heat exchange device, the first flow passage having at least a first inlet and a first outlet, the second flow passage having at least a second inlet and a second outlet, the first inlet being connected to the outlet of the heating device, the first outlet being connected to the water supply port, the second inlet being for connection to the water inlet port, the second outlet being for connection to the inlet of the heating device;

The water treatment device is arranged between the second inlet and the water inlet port;

the inlet of the flushing water pipeline is connected with the first outlet, and the outlet of the flushing water pipeline is connected with the water inlet of the water treatment device or the water outlet of the water treatment device.

In a preferred embodiment of the present utility model, the water supply port is provided with a water outlet valve, a liquid inlet of the water outlet valve is connected with the first outlet, and a liquid outlet or a water inlet of the water outlet valve is connected with a water inlet of the water treatment device or a water outlet of the water treatment device through a flushing water pipeline.

In a preferred embodiment of the present utility model, the flushing water pipe is provided with a first valve element for controlling the on-off state of the flow path.

In a preferred embodiment of the utility model, a second valve element is provided in the line between the second outlet and the inlet of the heating device, which valve element prevents liquid from flowing back to the second flow channel.

In a preferred embodiment of the present utility model, the water purifying device further includes a water inlet pipe, the water inlet pipe has an inlet, a first outlet and a second outlet, the inlet of the water inlet pipe is connected to the water inlet port, the first outlet of the water inlet pipe is connected to the second inlet, the second outlet of the water inlet pipe is connected to the inlet of the heating device, and the water inlet pipe is used for dividing the liquid in the water inlet pipe to the heating device and the second flow channel.

In a preferred embodiment of the utility model, a third valve element is arranged on the water inlet line, which third valve element is used for regulating the flow of the liquid split to the heating device and the second flow channel.

In a preferred embodiment of the utility model, the second outlet of the water inlet line or the water inlet line connected to the second outlet of the water inlet line is provided with a fourth valve element preventing liquid from flowing back into the third valve element.

In a preferred embodiment of the present utility model, the water treatment device is disposed on the water inlet pipe, and the water treatment device includes a filter element and a pressurizing element.

In a preferred embodiment of the present utility model, the filter element includes a first filter element, a membrane element, and a second filter element, and the first filter element, the membrane element, and the second filter element are sequentially disposed on the water inlet pipe along the flow direction of the liquid in the water inlet pipe;

the water purifying device further comprises a drainage pipeline, an outlet of the flushing water pipeline is connected with a water outlet of the second filter element, and a water inlet of the second filter element is connected with the drainage pipeline;

Or the outlet of the flushing water pipeline is connected with the water inlet of the second filter element, and the water outlet of the second filter element is connected with the drainage pipeline;

the pressurizing element is used for driving the liquid heated by the heating device to flow to the second filtering element through the first flow passage, the water outlet valve and the flushing water pipeline in sequence.

In a preferred embodiment of the utility model, the pressurizing element comprises a pressurizing pump and/or a pressure tank.

In a preferred embodiment of the utility model, a fifth valve element is provided on the drain line.

In a preferred embodiment of the utility model, a sixth valve element is arranged on the water inlet line downstream of the water treatment device.

In a preferred embodiment of the utility model, a seventh valve element is arranged on the water inlet port or on the water inlet line adjacent to the water inlet port.

In a preferred embodiment of the present utility model, the water purifying device further comprises a first connecting pipe, an inlet of the first connecting pipe is connected to the water inlet pipe located upstream of the second filter element in the direction of the flow of the liquid, and an outlet of the first connecting pipe is connected to an inlet of the heating device;

The pressurizing element can drive the liquid entering the water inlet pipeline from the water inlet port to directly enter the heating device for heating, and then sequentially pass through the first flow passage, the water outlet valve and the flushing water pipeline to flow to the second filtering element.

In a preferred embodiment of the utility model, the first connection line is provided with an eighth valve element and a ninth valve element preventing water from flowing back into the water inlet line.

In a preferred embodiment of the present utility model, the water purifying device further includes a second connecting pipe and a third connecting pipe, an inlet of the second connecting pipe is connected to an outlet of the heating device and the first inlet, an outlet of the second connecting pipe is connected to the second inlet, an inlet of the third connecting pipe is connected to the second outlet, and an outlet of the third connecting pipe is connected to a liquid inlet of the water outlet valve, a liquid outlet of the water outlet valve, or the flushing water pipe;

the pressurizing element can drive the liquid heated by the heating device to flow into the second flow passage from the second outlet, and then flow to the second filtering element through the second flow passage and the flushing water pipeline in sequence.

In a preferred embodiment of the present utility model, the second connection pipe is provided with a tenth valve element for controlling the on-off of the flow path, and the third connection pipe is provided with an eleventh valve element for controlling the on-off of the flow path.

In a preferred embodiment of the present utility model, the second connecting line is provided with a twelfth valve element for preventing liquid from flowing back into the first flow passage and the heating device, and the third connecting line is provided with a thirteenth valve element for preventing liquid from flowing back into the second flow passage.

In a preferred embodiment of the present utility model, the water outlet valve is a concentric sleeve type water nozzle, and the water outlet valve further has a water supply port for supplying water to the end of a user;

the water outlet valve is provided with a first cavity and a second cavity which is arranged around the periphery of the first cavity, a liquid inlet of the water outlet valve and a liquid outlet of the water outlet valve are respectively communicated with the second cavity, the first cavity and the second cavity can be connected in an on-off mode, and a liquid supply port of the water outlet valve is communicated with the first cavity.

In a preferred embodiment of the utility model, a fourteenth valve element is provided between the outlet of the flushing water line and the water inlet of the water treatment device or the water outlet of the water treatment device, which prevents liquid from flowing back to the flushing water line.

In a preferred embodiment of the utility model, the heating means comprises a hot tank.

In a preferred embodiment of the present utility model, the heat exchange device includes a heat exchange coil, the heat exchange coil is a sleeve structure in which the second flow channel is annularly disposed at the periphery of the first flow channel, and the heat exchange coil is spirally disposed on the outer wall of the heat tank.

From the above, the water purifying device of the utility model has the characteristics and advantages that: the heat exchange device is provided with a first flow channel and a second flow channel, a first inlet of the first flow channel is connected with an outlet of the heating device, a first outlet of the first flow channel is connected with a water supply port of the water purification device, a second inlet of the second flow channel is connected with a water inlet port of the water purification device, a water treatment device for purifying liquid entering the water purification device is arranged between the second inlet of the second flow channel and the water inlet port of the water purification device, a second outlet of the second flow channel is connected with an inlet of the heating device, the heating device can heat the liquid flowing through, the heated liquid flows through the first flow channel of the heat exchange device, and the liquid in the first flow channel and the liquid in the second flow channel are provided for a user to drink through the water supply port of the water purification device after heat exchange; according to the utility model, the first outlet of the first flow channel is connected with the water inlet or the water outlet of the water treatment device through the flushing water pipeline, so that the liquid heated by the heating device can be used for flushing and sterilizing the filter element and/or the pipeline in the water treatment device, the filter element of the filter element is not required to be adjusted or replaced, the cost is saved, and the bacterial colony in the water at any moment can be ensured to meet the standard due to the high-temperature sterilization of the heated liquid, and the safety of water is improved.

Drawings

The following drawings are only for purposes of illustration and explanation of the present utility model and are not intended to limit the scope of the utility model. Wherein:

fig. 1: is one of the structural schematic diagrams of the water purifying device in one embodiment of the utility model.

Fig. 2: a second schematic structural diagram of the water purifying device according to an embodiment of the present utility model is shown.

Fig. 3: a third schematic diagram of a water purifying device according to an embodiment of the present utility model.

Fig. 4: the structure of the heating device and the heat exchange device in the water purifying device is schematically shown in an embodiment of the utility model.

Fig. 5: the structure of the water outlet valve in the water purifying device is schematically shown in an embodiment of the utility model.

The reference numerals in the utility model are:

1. a heat exchange device; 101. a first flow passage; 1011. a first inlet; 1012. a first outlet; 102. a second flow passage; 1021. a second inlet; 1022. a second outlet; 2. a heating device; 201. a hot pot; 202. a heating rod; 3. a water inlet port; 4. a water supply port; 5. a water treatment device; 501. a first filter element; 502. a membrane element; 503. a pressure barrel; 504. a second filter element; 6. a flush water line; 7. a water outlet valve; 701. a liquid inlet; 702. a liquid outlet; 703. a liquid supply port; 704. a first chamber; 705. a second chamber; 8. a first valve element; 9. a second valve element; 10. a water inlet pipeline; 1001. a main pipeline; 1002. a first branch line; 1003. a second branch line; 11. a third valve element; 12. a fourth valve element; 13. a drainage pipeline; 14. a fifth valve element; 15. a sixth valve element; 16. a seventh valve element; 17. a first connecting line; 18. an eighth valve element; 19. a ninth valve element; 20. a second connecting pipeline; 21. a third connecting pipeline; 22. a tenth valve element; 23. a twelfth valve element; 24. an eleventh valve element; 25. a thirteenth valve element.

Detailed Description

For a clearer understanding of technical features, objects, and effects of the present utility model, a specific embodiment of the present utility model will be described with reference to the accompanying drawings.

As shown in fig. 1 to 3, the present utility model provides a water purifying apparatus comprising a water inlet port 3, a water supply port 4, a heating apparatus 2, a heat exchanging apparatus 1, a water treating apparatus 5, and a washing water pipe 6, the heating apparatus 2 being for heating a liquid flowing inside the heating apparatus 2; the heat exchange device 1 is provided with a first flow passage 101 and a second flow passage 102 which can exchange heat for the liquid flowing through the heat exchange device 1, the first flow passage 101 is provided with at least a first inlet 1011 and a first outlet 1012, the second flow passage 102 is provided with at least a second inlet 1021 and a second outlet 1022, the first inlet 1011 of the first flow passage 101 is connected with the outlet of the heating device 2, the first outlet 1012 of the first flow passage 101 is connected with the water supply port 4, the second inlet 1021 of the second flow passage 102 is used for being connected with the water inlet 3, the water treatment device 5 is arranged on a pipeline between the second inlet 1021 of the second flow passage 102 and the water inlet 3, the liquid entering from the water inlet 3 is purified by the water treatment device 5, the second outlet 1022 of the second flow passage 102 is used for being connected with the inlet of the heating device 2, the heated liquid flows through the first flow passage 101 of the heat exchange device 1, and the liquid in the second flow passage 102 is used for being drunk by a user after exchanging heat with the liquid in the second flow passage 102 in the process of the first flow passage 101. In the present utility model, the flushing water pipe 6 is provided between the first outlet 1012 of the first flow passage 101 and the water inlet or outlet of the water treatment device 5, the inlet of the flushing water pipe 6 is connected to the first outlet 1012 of the first flow passage 101, and the outlet of the flushing water pipe 6 is connected to the water inlet of the water treatment device 5 or the water outlet of the water treatment device 5.

In the utility model, a heat exchange device 1 is provided with a first flow channel 101 and a second flow channel 102, a first inlet 1011 of the first flow channel 101 is connected with an outlet of a heating device 2, a first outlet 1012 of the first flow channel 101 is connected with a water supply port 4 of a water purifying device, a second inlet 1021 of the second flow channel 102 is connected with a water inlet port 3 of the water purifying device, a water treatment device 5 for purifying liquid entering the water purifying device is arranged between the second inlet 1021 of the second flow channel 102 and the water inlet port 3 of the water purifying device, a second outlet 1022 of the second flow channel 102 is connected with an inlet of the heating device 2, the heating device 2 can heat the liquid flowing through, the heated liquid flows through the first flow channel 101 of the heat exchange device 1, and the liquid in the first flow channel 101 and the liquid in the second flow channel 102 are provided for a user to drink through the water supply port 4 of the water purifying device after heat exchange; in the utility model, the first outlet 1012 of the first flow channel 101 is connected with the water inlet or the water outlet of the water treatment device 5 through the flushing water pipeline 6, the liquid flowing into the first flow channel 101 after being heated by the heating device 2 can be drained to the water treatment device 5 through the flushing water pipeline 6, the heated liquid is adopted to flush and sterilize the filtering element and/or pipeline in the water treatment device 5 at high temperature, the condition that impurities accumulate and bacteria grow in the water treatment device 5 is avoided, the colony in the water discharged at any moment can be ensured to meet the standard, and the safety of the water is improved; in addition, the utility model can realize the cleaning and sterilization of the filter element in the water treatment device 5, so that the filter element of the filter element does not need to be adjusted or replaced (such as a filter element with larger volume and better filtering performance), the cost is saved, and the utility model has better economical efficiency and practicability.

In the utility model, the water inlet 3 of the water purifying device can be connected with a water supply tap at the end of a user, tap water is supplied to the water inlet 3 through the water supply tap, the liquid in the second flow channel 102 is tap water supplied by the water supply tap, and the temperature of the tap water is lower than that of the liquid heated by the heating device 2 in the first flow channel 101 in a normal water supply state of the water purifying device, so that the liquid in the second flow channel 102 can exchange heat with the liquid in the first flow channel 101 and cool the liquid in the first flow channel 101 to a proper temperature range so as to supply the user with the water through the water supply port 4.

In an alternative embodiment of the present utility model, as shown in fig. 1 to 3, the water purifying device further comprises a water outlet valve 7, wherein the water outlet valve 7 is arranged at the water supply port 4, the liquid inlet of the water outlet valve 7 is connected with the first outlet 1012 of the first flow channel 101, and the liquid outlet of the water outlet valve 7 is connected with the water inlet of the water treatment device 5 or the water outlet of the water treatment device 5 through the flushing water pipeline 6. In the embodiment, the flushing water pipeline 6 can be connected with the water inlet of the water treatment device 5 or the water outlet of the water treatment device 5, and the water flow directions of different interface positions entering the water treatment device 5 are opposite (namely, forward flushing or backward flushing is carried out on the water treatment device 5), but the purposes of flushing impurities and sterilizing at high temperature can be achieved.

In this embodiment, as shown in fig. 1 to 3, the flushing water pipeline 6 is disposed between the liquid outlet of the water outlet valve 7 and the water treatment device 5 (i.e. the inlet of the flushing water pipeline 6 is connected to the liquid outlet of the water outlet valve 7), so that the liquid for flushing and sterilizing the water treatment device 5 and the connected pipeline through the flushing water pipeline 6 needs to pass through the water outlet valve 7, and therefore, the flushing and sterilizing operation needs to be performed when the user does not take water through the water outlet valve 7, the liquid supply port of the water outlet valve 7 is closed, the liquid inlet of the water outlet valve 7 is connected to the first outlet 1012 of the first flow channel 101, the liquid outlet of the water outlet valve 7 is connected to the inlet of the flushing water pipeline 6, and the liquid needs to flow through the water outlet valve 7 before entering the flushing water pipeline 6. Of course, the flushing water pipeline 6 may also be disposed between the liquid inlet of the water outlet valve 7 and the water treatment device 5 (i.e. the inlet of the flushing water pipeline 6 is connected with the liquid inlet of the water outlet valve 7), so that the liquid for flushing and sterilizing the water treatment device 5 and the connected pipeline through the flushing water pipeline 6 does not need to pass through the water outlet valve 7, but the liquid inlet of the water outlet valve 7 is respectively connected with the first outlet 1012 of the first flow channel 101 and the inlet of the flushing water pipeline 6, and the liquid can directly enter the flushing water pipeline 6 without flowing through the water outlet valve 7. It should be noted that, the above-mentioned connected interfaces may be directly connected, or other pipelines or communication members may be disposed between the two interfaces to realize the communication between the two interfaces, and the specific communication structure between the two interfaces is not limited herein. When the liquid inlet or the water outlet of the water outlet valve 7 is connected with a section of pipeline, the inlet of the flushing water pipeline 6 can be connected with the pipeline connected with the liquid inlet or the water outlet of the water outlet valve 7.

Further, as shown in fig. 1 to 3, the flushing water pipe 6 is provided with a first valve element 8, and the on-off state of the flow path in the flushing water pipe 6 can be controlled by the first valve element 8. When the water purifying device is used for normally supplying water, the first valve element 8 is controlled to be closed, at the moment, no liquid flows through the flushing water pipeline 6, and the water outlet valve 7 can normally supply water to a user; when the water purifying device is not supplying water to a user, the first valve element 8 is controlled to be conducted, and the liquid in the first flow passage 101 sequentially washes and sterilizes the water treating device 5 and the pipeline connected with the water treating device 5 through the first outlet 1012 and the washing water pipeline 6. The first valve element 8 may be a solenoid valve or a manual valve, and the specific type of the first valve element 8 is not limited herein.

Further, a fourteenth valve element (not shown) for preventing liquid from flowing back to the washing water pipeline 6 is provided between the outlet of the washing water pipeline 6 and the water inlet of the water treatment apparatus 5 or the water outlet of the water treatment apparatus 5, the fourteenth valve element being a one-way valve for allowing only liquid to flow from the washing water pipeline 6 to the water treatment apparatus 5, and the liquid is prevented from flowing back into the washing water pipeline 6 by the provision of the fourteenth valve element.

In an alternative embodiment of the present utility model, as shown in fig. 1 to 3, a second valve element 9 is provided on a pipe line between the second outlet 1022 of the second flow passage 102 and the inlet of the heating device 2, the second valve element 9 being a one-way valve for allowing only the flow path from the second outlet 1022 of the second flow passage 102 to the inlet direction of the heating device 2, and the liquid flowing out from the second outlet 1022 of the second flow passage 102 is prevented from flowing back to the second flow passage 102 by the provision of the second valve element 9.

In one embodiment of the present utility model, as shown in fig. 1 to 3, the water purifying apparatus further includes a water inlet pipe 10, the water inlet pipe 10 has an inlet, a first outlet and a second outlet, the inlet of the water inlet pipe 10 is connected to the water inlet port 3, the first outlet of the water inlet pipe 10 is connected to the second inlet 1021 of the second flow channel 102, the second outlet of the water inlet pipe 10 is connected to the inlet of the heating apparatus 2, after the liquid flows into the water inlet pipe 10 through the water inlet port 3, the water inlet pipe 10 can split the liquid into the heating apparatus 2 and the second flow channel 102, after the liquid split into the heating apparatus 2 is heated, the liquid split into the second flow channel 102 exchanges heat with the high-temperature liquid in the first flow channel 101, so that the liquid in the first flow channel 101 is cooled to a proper temperature and then supplied to a user for drinking through the water outlet valve 7. It should be noted that, the above-mentioned connected interfaces may be directly connected, or other pipelines or communication members may be disposed between the two interfaces to realize the communication between the two interfaces, and the specific communication structure between the two interfaces is not limited herein.

Further, as shown in fig. 1 to 3, a third valve element 11 is disposed at a position on the water inlet pipeline 10 for dividing the liquid, the third valve element 11 has at least three ports, the third valve element 11 is respectively connected with the water inlet port 3 of the water inlet pipeline 10, the second inlet 1021 of the second flow passage 102 and the inlet of the heating device 2 through the three ports, and the flow rate of the liquid divided into the heating device 2 and the second flow passage 102 can be adjusted through the third valve element 11. When the water treatment device 5 needs to be washed and sterilized, in order to ensure that the liquid in the first flow channel 101 has a higher temperature to achieve the effect of high-temperature sterilization, at this time, the flow rate of the normal-temperature liquid entering the second flow channel 102 needs to be reduced or the liquid flowing into the second flow channel 102 needs to be stopped by controlling the third valve element 11, so that the liquid in the first flow channel 101 keeps a higher temperature to achieve the aim of high-temperature sterilization. Wherein the third valve element 11 may be, but is not limited to, a proportional valve.

Further, as shown in fig. 1 to 3, the second outlet of the water inlet pipe 10 or the water inlet pipe 10 connected to the second outlet of the water inlet pipe 10 is provided with a fourth valve element 12, the fourth valve element 12 is a one-way valve which can only allow the liquid in the water inlet pipe 10 to flow in the inlet direction of the heating device 2, and the purpose of preventing the liquid from flowing back to the third valve element 11 is achieved by the arrangement of the fourth valve element 12.

Specifically, as shown in fig. 1 to 3, the water inlet pipe 10 includes a main pipe 1001, a first branch pipe 1002 and a second branch pipe 1003, one end of the main pipe 1001 is connected to the water inlet port 3, the other end of the main pipe 1001, one end of the first branch pipe 1002 and one end of the second branch pipe 1003 are connected to three ports of the third valve element 11, respectively, the other end of the first branch pipe 1002 is connected to the second inlet 1021 of the second flow passage 102, the other end of the second branch pipe 1003 is connected to the inlet of the heating device 2, the water treatment device 5 is provided on the main pipe 1001, and the fourth valve element 12 is provided on the second branch pipe 1003. It should be noted that, the above-mentioned connected interfaces may be directly connected, or other pipelines or communication members may be disposed between the two interfaces to realize the communication between the two interfaces, and the specific communication structure between the two interfaces is not limited herein.

In an alternative embodiment of the utility model, the water treatment device 5 comprises a filter element and a pressurizing element. The impurity in the liquid is filtered by the filter element, so that the purpose of purifying water is achieved. The pressurizing element provides driving force for the flow of the liquid in the water purifying device, so that the liquid can be ensured to smoothly pass through the filtering element.

Further, as shown in fig. 1 to 3, the filter element includes a first filter element 501, a membrane element 502 and a second filter element 504, and the first filter element 501, the membrane element 502 and the second filter element 504 are sequentially disposed on the water inlet pipeline 10 along the flow direction of the liquid in the water inlet pipeline 10. Wherein, first filter element 501 is the front-end filter, and second filter element 504 is the back-end filter, and first filter element 501 and second filter element 504 all are provided with the active carbon filter core. The membrane element 502 may be, but is not limited to, an RO membrane.

Further, as shown in fig. 1 to 3, the water purifying device further includes a drain pipeline 13, the outlet of the flushing water pipeline 6 is connected to the water outlet of the second filter element 504, the water inlet of the second filter element 504 is connected to the drain pipeline 13, the high-temperature liquid in the flushing water pipeline 6 enters the second filter element 504 from the water outlet of the second filter element 504, and is sequentially discharged through the water inlet of the second filter element 504 and the drain pipeline 13 to the outside, so as to realize back flushing and sterilization of the second filter element 504, and the flushing direction is opposite to the flow direction of the water flow in the normal water inlet state, so that the impurities accumulated in the filter element can be fully flushed and discharged. Of course, the outlet of the flushing water pipeline 6 can be connected with the water inlet of the second filter element 504, and the water outlet of the second filter element 504 is connected with the water discharge pipeline 13, so that the purposes of flushing, discharging and sterilizing the impurities accumulated in the filter element can be achieved.

Further, a fifth valve element 14 is provided on the drain pipe 13, and the on/off of the drain pipe 13 is controlled by the fifth valve element 14, so that the drain after flushing and sterilization is controlled. The fifth valve element 14 may be a solenoid valve or a manual valve, and the specific type of the fifth valve element 14 is not limited herein.

Further, as shown in fig. 1 to 3, a sixth valve element 15 is disposed on the water inlet pipeline 10 and downstream of the water treatment device 5, and the on-off state of the water inlet pipeline 10 downstream of the water treatment device 5 can be controlled by the sixth valve element 15, so that whether purified liquid is provided to the heat exchange device 1 and/or the heating device 2 can be controlled. The sixth valve element 15 may be a solenoid valve or a manual valve, and the specific type of the sixth valve element 15 is not limited herein.

Further, as shown in fig. 1 to 3, a seventh valve element 16 is provided on the water inlet port 3 of the water purifying device or the water inlet pipe 10 near the water inlet port 3. The on-off state of the flow path at the water inlet port 3 is controlled by the seventh valve element 16, thereby controlling the water inlet of the water inlet port 3. The seventh valve element 16 may be a solenoid valve or a manual valve, and the specific type of the seventh valve element 16 is not limited herein.

Further, as shown in fig. 1-3, the pressurizing elements include a booster pump (not shown) and/or a pressure tank 503. The pressurizing element can provide driving force for the liquid flowing into the water inlet pipeline 10 from the water inlet port 3, so that the liquid can smoothly pass through the filtering element. When the second filter element 504 and the pipeline connected with the second filter element 504 need to be washed and sterilized, the third valve element 11 can be adjusted to enable the liquid to flow into the heating device 2 only for heating, and normal-temperature liquid does not flow into the second flow channel 102 of the heat exchange device 1, at the moment, the liquid supply port of the water outlet valve 7 is closed, the liquid flowing in from the water inlet port 3 pushes the liquid heated by the heating device 2 to flow, and the heated high-temperature liquid flows through the first flow channel 101, the washing water pipeline 6 and the water treatment device 5 of the heat exchange device 1 in sequence, so that washing and sterilization of the second filter element 504 and the pipeline connected with the second filter element 504 are realized. In the above process, the pressurizing element in the water treatment device 5 is used for providing power, so that the liquid heated by the heating device 2 is driven to flow to the second filtering element 504 through the first flow passage 101, the water outlet valve 7 and the flushing water pipeline 6 of the heat exchange device 1 in sequence. Of course, other pressurizing devices (such as a booster pump) may be disposed on at least one of the first flow channel 101 of the heat exchange device 1, the flushing water pipeline 6, the water inlet pipeline 10 and the first flow channel 101 of the heat exchange device 1, so as to achieve the purpose of providing power for the liquid in the water purifying device, thereby flushing and sterilizing the second filter element 504 and the pipeline connected with the second filter element 504.

In an alternative embodiment of the utility model, as shown in fig. 2 and 3, the water purification device further comprises a first connection pipe 17, the inlet of the first connection pipe 17 being connected to the water inlet pipe 10 upstream of the second filter element 504 in the direction of the flow of the liquid, and the outlet of the first connection pipe 17 being connected to the inlet of the heating device 2. In this embodiment, the third valve element 11 is adjusted to enable the liquid to flow into the heating device 2 for heating, but normal temperature liquid does not flow into the second flow passage 102 of the heat exchange device 1, at this time, the pressurizing element can drive the liquid entering the water inlet pipeline 10 from the water inlet port 3 to directly enter the heating device 2 through the first connecting pipeline 17 for heating, and the heated liquid flows to the second filter element 504 through the first flow passage 101, the water outlet valve 7 and the flushing water pipeline 6 of the heat exchange device 1 in sequence, so as to realize flushing and sterilization of the second filter element 504 and the pipeline connected with the second filter element 504. It should be noted that, the above-mentioned connected interfaces may be directly connected, or other pipelines or communication members may be disposed between the two interfaces to realize the communication between the two interfaces, and the specific communication structure between the two interfaces is not limited herein.

Further, as shown in fig. 2 and 3, the first connecting pipe 17 is provided with an eighth valve element 18 and a ninth valve element 19 that prevents water from flowing back into the water intake pipe 10. The on-off state of the first connecting pipe 17 can be controlled by the eighth valve element 18, so as to control whether the liquid can directly enter the heating device 2 through the first connecting pipe 17, wherein the eighth valve element 18 can be a solenoid valve or a manual valve, and the specific type of the eighth valve element 18 is not limited herein. The ninth valve element 19 is a one-way valve which allows only the liquid in the first connection pipe 17 to flow in the direction of the inlet of the heating device 2, and the purpose of preventing liquid from flowing back to the water inlet pipe 10 is achieved by the arrangement of the ninth valve element 19.

In an alternative embodiment of the present utility model, as shown in fig. 3, the water purifying apparatus further includes a second connection pipe 20 and a third connection pipe 21, wherein an inlet of the second connection pipe 20 is connected to an outlet of the heating apparatus 2 and a first inlet 1011 of the first flow path 101, an outlet of the second connection pipe 20 is connected to a second inlet 1021 of the second flow path 102, an inlet of the third connection pipe 21 is connected to a second outlet 1022 of the second flow path 102, and an outlet of the third connection pipe 21 is connected to an inlet of the water outlet valve 7. In this embodiment, the third valve element 11 is adjusted to enable the liquid to flow into the heating device 2 only for heating, but the second flow channel 102 of the heat exchange device 1 does not flow into the normal temperature liquid, at this time, the pressurizing element can drive the liquid heated by the heating device 2 to flow into the second flow channel 102 from the second outlet 1022 of the second flow channel 102 (at this time, the flow direction of the liquid in the second flow channel 102 is opposite to the flow direction of the liquid in the second flow channel 102 in the normal heat exchange state of the heat exchange device 1), and then the liquid flows to the second filter element 504 through the second inlet 1021, the water outlet valve 7 and the flushing water pipeline 6 of the second flow channel 102 in sequence, so as to realize flushing and sterilizing of the second filter element 504 and the pipeline connected with the second filter element 504. In this embodiment, the liquid flowing through the first flow channel 101, the second flow channel 102 and the flushing water pipeline 6 of the heat exchange device 1 is high-temperature liquid heated by the heating device 2, so that the whole pipeline sterilization of the water purifying device can be realized, the overall sterilization effect of the water purifying device is improved, and the safety of water is further improved. It should be noted that, the above-mentioned connected interfaces may be directly connected, or other pipelines or communication members may be disposed between the two interfaces to realize the communication between the two interfaces, and the specific communication structure between the two interfaces is not limited herein.

In another alternative embodiment of the utility model, the inlet of the third connecting line 21 is connected to the second outlet 1022 of the second flow passage 102, and the outlet of the third connecting line 21 may also be connected to the outlet of the water outlet valve 7 or to a flushing water line. In this embodiment, the liquid heated by the heating device 2 flows into the second flow channel 102 from the second outlet 1022 of the second flow channel 102, and then flows to the second filter element 504 through the second inlet 1021 of the second flow channel 102 and the flushing water pipeline 6 sequentially after passing through the second flow channel 102 (in this process, the liquid flowing out from the second inlet 1021 of the second flow channel 102 directly enters the flushing water pipeline 6 and does not pass through the water outlet valve 7), so as to flush and sterilize the second filter element 504 and the pipeline connected to the second filter element 504.

Further, as shown in fig. 3, a tenth valve element 22 for controlling the on-off of the flow path is disposed on the second connecting pipeline 20, and the on-off state of the second connecting pipeline 20 can be controlled by the tenth valve element 22; the second connecting line 20 is further provided with a twelfth valve element 23 for preventing the liquid from flowing back to the first flow path 101 and the heating device 2, the twelfth valve element 23 is a one-way valve which can only allow the liquid in the second connecting line 20 to flow from the first inlet 1011 of the first flow path 101 to the second outlet 1022 of the second flow path 102, and the purpose of preventing the liquid from flowing back to the first flow path 101 and the heating device 2 is achieved by the arrangement of the twelfth valve element 23. The third connecting pipeline 21 is provided with an eleventh valve element 24 for controlling the on-off of the flow path, and the on-off state of the third connecting pipeline 21 can be controlled by the eleventh valve element 24; the thirteenth valve element 25 for preventing the liquid from flowing back to the second flow passage 102 is further provided on the third connecting pipe 21, the thirteenth valve element 25 is a one-way valve which can only allow the liquid in the third connecting pipe 21 to flow from the second inlet 1021 of the second flow passage 102 to the flushing water pipe 6, and the purpose of preventing the liquid from flowing back to the second flow passage 102 is achieved by the provision of the thirteenth valve element 25.

The tenth valve element 22 and the eleventh valve element 24 may be solenoid valves or manual valves, and specific types of the tenth valve element 22 and the eleventh valve element 24 are not limited herein.

In an alternative embodiment of the present utility model, as shown in fig. 5, the water outlet valve 7 is a concentric sleeve type water nozzle, and the water outlet valve 7 has at least a liquid inlet 701, a liquid outlet 702 and a water supply port for supplying water to the end of a user; the inside of the water outlet valve 7 is provided with a first chamber 704 and a second chamber 705, the second chamber 705 is annularly arranged on the periphery of the first chamber 704, a liquid inlet 701 of the water outlet valve 7 and a liquid outlet 702 of the water outlet valve 7 are respectively communicated with the second chamber 705, the first chamber 704 and the second chamber 705 can be connected on-off, and a liquid supply port 703 of the water outlet valve 7 is communicated with the first chamber 704. When a user needs to take water, the valve element arranged at the liquid outlet 702 can be controlled to be turned off (the valve element can be the first valve element 8, or a control valve for controlling the opening and closing of the liquid outlet 702 can be arranged on the liquid outlet 702 or a pipeline connected with the liquid outlet 702), so that the liquid in the second chamber 705 does not flow out from the liquid outlet 702, and at the moment, the first chamber 704 is controlled to be communicated with the second chamber 705, so that the liquid in the second chamber 705 flows into the first chamber 704 and is supplied to the user for drinking by the liquid supply port 703; when the user does not need to take water, the valve element arranged at the liquid outlet 702 is controlled to be conducted, the first chamber 704 is not communicated with the second chamber 705, and the liquid flowing into the second chamber 705 from the liquid inlet 701 flows out through the liquid outlet 702 and can participate in flushing and sterilizing the water treatment device 5.

Further, a control mechanism may be disposed at a communication position between the first chamber 704 and the second chamber 705, where the control mechanism is used to control on/off between the first chamber 704 and the second chamber 705. Wherein the control means may be, but is not limited to, a solenoid valve, thereby effecting an electric control of the water valve 7.

In an alternative embodiment of the utility model, as shown in fig. 1 to 4, the heating device 2 comprises a hot tank 201. A heating rod 202 is provided inside the heat tank 201, and the heating rod 202 is used to heat the liquid entering the heat tank 201. The heat exchange device 1 comprises a heat exchange coil, the heat exchange coil is of a sleeve type structure in which a second flow passage 102 is arranged around the periphery of a first flow passage 101, and the heat exchange coil is spirally arranged on the outer wall of a heat tank.

Further, an insulation layer is arranged on the outer wall of the heat tank 201, and is used for insulating the heat tank 201, so that heat loss in the heat tank 201 is avoided.

Specifically, as shown in fig. 4, the heat exchange coil includes an inner tube and an outer tube, the inner tube is coaxially disposed inside the outer tube, the first flow channel 101 is formed inside the inner tube, the second flow channel 102 is formed between an outer wall of the inner tube and an inner wall of the outer tube, the first inlet 1011 and the first outlet 1012 are respectively located at both ends of the first flow channel 101, and the first inlet 1011 and the first outlet 1012 are respectively communicated with the first flow channel 101, the second inlet 1021 and the second outlet 1022 are respectively located at both ends of the second flow channel 102, and the second inlet 1021 and the second outlet 1022 are respectively communicated with the second flow channel 102.

The water purifying device has the characteristics and advantages that:

1. in the water purifying device, liquid heated by the heating device 2 is drained to the water treatment device 5 through the flushing water pipeline 6, the heated liquid is adopted to flush and sterilize the filtering element and/or the pipeline in the water treatment device 5, the condition that impurities accumulate and bacteria grow in the water treatment device 5 is avoided, the colony in water at any moment can be ensured to meet the standard, and the safety of water is improved.

2. The water purifying device can clean and sterilize the filter element in the water treatment device 5, does not need to adjust or replace the filter element of the filter element, saves cost, and has better economical efficiency and practicability.

The foregoing is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model. Any equivalent changes and modifications can be made by those skilled in the art without departing from the spirit and principles of this utility model, and are intended to be within the scope of this utility model.

Claims

1. A water purification apparatus, comprising:

a water inlet port;

a water supply port;

2. The water purification device according to claim 1, wherein the water supply port is provided with a water outlet valve, a liquid inlet of the water outlet valve is connected with the first outlet, and a liquid outlet or a water inlet of the water outlet valve is connected with a water inlet of the water treatment device or a water outlet of the water treatment device through a flushing water pipeline.

3. The water purification apparatus according to claim 2, wherein the flushing water line is provided with a first valve element for controlling the on-off state of the flow path.

4. A water purification apparatus according to claim 2, wherein a second valve element is provided in the conduit between the second outlet and the inlet of the heating means to prevent liquid from flowing back to the second flow passage.

5. The water purification apparatus of claim 2, further comprising a water inlet line having an inlet, a first outlet, and a second outlet, the inlet of the water inlet line being connected to the water inlet port, the first outlet of the water inlet line being connected to the second inlet, the second outlet of the water inlet line being connected to the inlet of the heating device, the water inlet line being configured to divert liquid within the water inlet line to the heating device and the second flow path.

6. The water purifying apparatus according to claim 5, wherein a third valve element is provided on the water inlet pipe, the third valve element being for adjusting the flow rate of the liquid split to the heating apparatus and the second flow passage.

7. The water purifying apparatus according to claim 6, wherein the second outlet of the water inlet pipe or the water inlet pipe connected to the second outlet of the water inlet pipe is provided with a fourth valve element preventing the liquid from flowing back into the third valve element.

8. The water purification apparatus of claim 5, wherein the water treatment apparatus is disposed on the water inlet line, and wherein the water treatment apparatus comprises a filter element and a pressurizing element.

9. The water purification apparatus according to claim 8, wherein the filter element comprises a first filter element, a membrane element and a second filter element, which are sequentially disposed on the water inlet line along a flow direction of the liquid in the water inlet line;

10. The water purification apparatus of claim 9, wherein the pressurizing element comprises a pressurizing pump and/or a pressure tank.

11. The water purification apparatus of claim 9, wherein a fifth valve element is provided on the water discharge line.

12. The water purification apparatus of claim 8, wherein a sixth valve element is disposed on the water inlet line downstream of the water treatment apparatus.

13. The water purification apparatus according to claim 5, wherein a seventh valve element is provided on the water inlet port or the water inlet pipe adjacent to the water inlet port.

14. The water purification apparatus according to claim 9, further comprising a first connecting line, an inlet of the first connecting line being connected to the water inlet line upstream of the second filter element in a direction of flow of the liquid, an outlet of the first connecting line being connected to an inlet of the heating apparatus;

15. The water purifying apparatus according to claim 14, wherein the first connecting line is provided with an eighth valve element and a ninth valve element that prevents water from flowing back into the water inlet line.

16. The water purification apparatus according to claim 9, further comprising a second connection pipe and a third connection pipe, wherein an inlet of the second connection pipe is connected to an outlet of the heating apparatus and the first inlet, an outlet of the second connection pipe is connected to the second inlet, an inlet of the third connection pipe is connected to the second outlet, and an outlet of the third connection pipe is connected to a liquid inlet of the water outlet valve or a liquid outlet of the water outlet valve or the flushing water pipe, respectively;

17. The water purification apparatus according to claim 16, wherein a tenth valve element for controlling the flow path is provided on the second connection line, and an eleventh valve element for controlling the flow path is provided on the third connection line.

18. The water purifying apparatus according to claim 17, wherein a twelfth valve element for preventing the liquid from flowing back into the first flow passage and the heating device is provided on the second connection pipe, and a thirteenth valve element for preventing the liquid from flowing back into the second flow passage is provided on the third connection pipe.

19. The water purification apparatus according to any one of claims 2 to 18, wherein the water outlet valve is a concentric sleeve water nozzle, the water outlet valve further having a water supply port for supplying water to a user's end;

20. The water purification apparatus of claim 1, wherein a fourteenth valve element for preventing liquid from flowing back to the washing water line is provided between an outlet of the washing water line and a water inlet of the water treatment apparatus or a water outlet of the water treatment apparatus.

21. The water purification apparatus of claim 1, wherein the heating device comprises a hot tank.

22. The water purification apparatus of claim 21, wherein the heat exchange device comprises a heat exchange coil, the heat exchange coil is a sleeve-type structure in which the second flow passage is annularly arranged on the periphery of the first flow passage, and the heat exchange coil is spirally arranged on the outer wall of the heat tank.