CN118993436A

CN118993436A - Water purifier

Info

Publication number: CN118993436A
Application number: CN202411335308.1A
Authority: CN
Inventors: 罗宏伟; 陈宝; 张可可; 张明远; 马家骏
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2024-09-24
Filing date: 2024-09-24
Publication date: 2024-11-22

Abstract

The present invention relates to the technical field of water purification, and discloses a water purifier, including a water purification system and a heat regeneration device, wherein the water purification system includes a pre-filter element, a water storage unit, a heating unit and a heat exchange unit connected in series to a water purification pipeline, the pre-filter element has a first water inlet and a first water outlet, the heating unit has a heating water inlet and a heating water outlet, the heat exchange unit has a first heat exchange channel and a second heat exchange channel, the heat regeneration device includes a heat regeneration pipeline, a regeneration drainage pipeline and a control valve group, based on the water purification system The water volume reaches a preset nominal value, the control valve group switches to a first state, so that the boiling water of the heating unit flows into the heat exchange unit and exchanges heat with the normal temperature water from the water storage unit to form hot water of a preset value, and the hot water flows into the pre-filter element for hot washing. The present application does not need to frequently adjust the heating power of the heating unit, and satisfies the user's need to directly use boiling water before and after the water purification system executes the heat regeneration mode, without waiting, thereby improving the user experience.

Description

Water purifier

Technical Field

The invention relates to the technical field of water purification, in particular to a water purifier.

Background

The tap water is inevitably polluted by rust, sediment, organic matters, microorganisms and the like in the conveying process of the pipe network, and the water purifier with the purification function can play a good role in removing impurities and purifying the tap water. The water purification system of the water purifier generally comprises a pre-filter element, a precise filter element and a post-treatment filter element, wherein the pre-filter element is used for removing organic matters, colloid, heavy metals, sediment particles and the like, the precision of the precise filter element is extremely high, such as a reverse osmosis membrane filter element (RO filter element), and the precise filter element is a core treatment filter element of the water purification system, and the post-treatment filter element is used for removing trace elements, adjusting pH, adjusting drinking taste and the like.

The active carbon component in the pre-filter element can effectively remove oxidizing substances such as residual chlorine, so the active carbon component is an indispensable important component in the pre-filter element, but the active carbon component of the pre-filter element has shorter service life compared with other filter elements, so that the pre-filter element needs to be replaced frequently, has higher cost and also limits the nominal value of the rated purified water amount of the whole machine.

Disclosure of Invention

In view of the above, the invention provides a water purifier to solve the problems of frequent replacement and high cost of the pre-filter element in the prior art.

The invention provides a water purifier, which comprises a water purifying system and a heat regeneration device, wherein the water purifying system comprises a preposed filter core, a water storage unit, a heating unit and a heat exchange unit which are sequentially connected in series to a water purifying pipeline, the preposed filter core comprises an active carbon component, the preposed filter core is provided with a first water inlet and a first water outlet, the water storage unit is communicated with the first water outlet, the heating unit is provided with a heating water inlet and a heating water outlet, the heating water outlet is connected with a boiling water intake, the heat exchange unit is provided with a first heat exchange channel and a second heat exchange channel, two ends of the first heat exchange channel are respectively connected with the water storage unit and the heating water inlet, one end of the second heat exchange channel is connected with the heating water outlet, the heat regeneration device comprises a heat regeneration pipeline, a regeneration drainage pipeline and a control valve group, one end of the heat regeneration pipeline is connected with the other end of the second heat exchange channel, the other end of the heat regeneration pipeline is connected with the first water outlet, the control valve group is provided with a first water inlet, the water inlet is connected with the first heat exchange channel, the water exchange pipeline is in a first state, the water exchange pipeline is in a preset state, the water exchange pipeline is in a water exchange state, the water flows into the first water storage pipeline and the water storage unit through the water storage unit, the water storage unit and the water exchange pipeline reaches a preset water exchange value, and the water exchange valve flows to the water heater, and the water exchange pipeline reaches the water-heater, and the water exchange valve reaches the water-heater, and the water-heater flows to the water-heater, and the water heater flows through the water filter.

The beneficial effects are that: the water purification system can control the working state of the control valve group according to the water purification amount of the water purification system, specifically, when the water purification amount of the water purification system reaches a preset nominal value, the control valve group is switched to a first state to conduct the water storage unit and the first heat exchange channel, so that boiling water of the heating unit flows into the second heat exchange channel and exchanges heat with normal-temperature water from the water storage unit in the first heat exchange channel to form hot water with a preset value, the hot water flows through the heat regeneration pipeline and the first water outlet to the front filter element to realize reverse heat washing regeneration of the front filter element, the washed hot water is discharged through the first water inlet and the regeneration drainage pipeline, the water purification amount of the water purification system reaches the preset nominal value, the heat washing of the front filter element can be started, impurities adsorbed by the active carbon can be washed off, meanwhile, the active carbon is disinfected and the active carbon fiber is regenerated, the service life of the front filter element is effectively prolonged, the replacement frequency of the active carbon is reduced, the cost is reduced, the rated water purification amount of the water purification system is increased, the service life of the water purification system is prolonged, the boiling water is cooled through the heat exchange unit, the heating water is directly after the heating unit is cooled, the water consumption of the heating unit is not influenced, and the water purification system is directly heated, and a user needs to be in a heating mode.

In some embodiments, the water purification system further comprises a flow sensor, the flow sensor is arranged on the water purification pipeline, and the flow sensor is used for controlling the control valve group to switch to the first state when detecting that the water purification amount of the water purification system reaches the preset nominal value.

The beneficial effects are that: the water flow of the water purifying pipeline is detected in real time through the flow sensor, and when the water purifying amount of the water purifying system reaches a preset nominal value, the control valve group is controlled to be switched to a first state, so that the heat washing regeneration of the front filter element is realized, and the automatic control switching is realized.

In some embodiments, the control valve group further has a second state of conducting the water storage unit and the thermal regeneration pipeline, and the control valve group is switched to the second state based on the end of the reverse thermal flushing regeneration of the pre-filter element, so that the flushing cooling of the pre-filter element is realized by the flow of the warm water in the water storage unit through the thermal regeneration pipeline, the first water outlet, the pre-filter element, the first water inlet and the regeneration drain pipeline.

The beneficial effects are that: after the reverse hot washing regeneration of the front filter element is finished, the control valve group is controlled to be switched to a second state to conduct the water storage unit and the hot regeneration pipeline, normal-temperature water in the water storage unit flows into the front filter element through the hot regeneration pipeline and the first water outlet to realize washing cooling of the front filter element, cooled water is discharged through the first water inlet and the regeneration drainage pipeline, so that hot regenerated residual hot water of the front filter element is quickly replaced, quick cooling of the front filter element is realized, water taking waiting time of a user is reduced, damage to the front filter element caused by the hot water flowing into the fine filter element at the rear end is avoided, and the service life of the front filter element is shortened.

In some embodiments, the water purification system further comprises a warm water pipeline connected with the outlet of the second heat exchange channel and the inlet of the thermal regeneration pipeline, wherein the warm water pipeline is connected with a warm water intake and a disinfection drainage pipeline; the control valve group is also provided with a third state for conducting the heating unit and the warm water pipeline, and is switched to the third state based on the water purification system in a disinfection and sterilization mode, so that the boiling water of the heating unit flows into the warm water pipeline for high-temperature disinfection and sterilization and is discharged through the disinfection and drainage pipeline.

The beneficial effects are that: when the water purification system is in a disinfection and sterilization mode, the control valve group is switched to a third state to conduct the heating unit and the warm water pipeline, so that the boiling water of the heating unit flows into the warm water pipeline to realize high-temperature disinfection and sterilization of the warm water pipeline, and finally is discharged through the disinfection and drainage pipeline, and the health of drinking water of a user is ensured.

In some embodiments, the control valve block comprises: the inlet of the first electromagnetic valve is connected with the water storage unit, and the outlet of the first electromagnetic valve is connected with the first heat exchange channel; the inlet of the second electromagnetic valve is connected with the water storage unit, and the outlet of the second electromagnetic valve is connected with the warm water pipeline; the inlet of the third electromagnetic valve is connected with the heating unit, and the outlet of the third electromagnetic valve is connected with the inlet of the second electromagnetic valve;

Based on the control valve group is in the first state, the first electromagnetic valve is opened, based on the control valve group is in the second state, the second electromagnetic valve is opened, based on the control valve group is in the third state, the second electromagnetic valve and the third electromagnetic valve are both opened, so that boiling water of the heating unit flows through the second electromagnetic valve and the third electromagnetic valve, flows into the warm water pipeline and is discharged through the disinfection drainage pipeline.

The beneficial effects are that: when the control valve group is in a first state, the first electromagnetic valve is opened, normal-temperature water of the water storage unit enters the first heat exchange channel through the first electromagnetic valve, and boiling water of the heating unit flows into the second heat exchange channel and exchanges heat with normal-temperature water in the first heat exchange channel to form hot water with a preset value so as to thermally flush the front filter element; when the control valve group is in a second state, the second electromagnetic valve is opened, and normal-temperature water of the water storage unit enters the front filter element through the second electromagnetic valve, the warm water pipeline and the thermal regeneration pipeline to flush and cool the front filter element; when the control valve group is in a third state, the second electromagnetic valve and the third electromagnetic valve are both opened, so that boiling water of the heating unit flows into the warm water pipeline through the second electromagnetic valve and the third electromagnetic valve to sterilize and disinfect the warm water pipeline at high temperature, and then is discharged through the disinfection drainage pipeline.

In some embodiments, the water purification system further comprises a temperature regulating device for regulating the temperature of the hot water flowing out of the second heat exchange channel to reach the preset value.

The beneficial effects are that: because the temperature of the normal temperature water of the water storage unit is certain (consistent with the environment), and the temperature of the boiling water of the heating unit is certain, the hot water subjected to heat exchange by the heat exchange unit is generally at a specific temperature, and factors such as environmental temperature change are likely to influence that the hot water subjected to heat exchange by the heat exchange unit is not at a preset value, and based on the fact, the temperature of the hot water flowing out of the second heat exchange channel can be adjusted through the temperature adjusting device so as to reach the preset value.

In some embodiments, the temperature adjusting device comprises a temperature adjusting pipeline and a temperature adjusting valve, wherein two ends of the temperature adjusting pipeline are respectively connected with the heating unit and the warm water pipeline, the temperature adjusting valve is arranged on the temperature adjusting pipeline and is used for being opened when the temperature of hot water in the warm water pipeline is detected to be lower than the preset value, so that the boiling water in the heating unit flows through the temperature adjusting pipeline and flows into the warm water pipeline.

The beneficial effects are that: when the temperature of warm water taken by a user is lower than a preset value or the temperature of hot water for hot flushing of the front filter element is lower than a preset value, the temperature regulating valve is opened, so that the boiling water of the heating unit flows into the warm water pipeline through the temperature regulating pipeline to be mixed with the hot water in the warm water pipeline, and the temperature of the hot water is increased to reach the preset value.

In some embodiments, the water purification system further comprises a pipeline detection device for detecting water leakage blockage of the water purification pipeline.

The beneficial effects are that: because the sealing of the joint of the water purifying pipeline of the whole machine fails, the long-term water leakage of the whole machine causes the distortion and inaccuracy of the detection data of the flow sensor, and causes the fact that the error judgment is made to start the hot washing regeneration of the front filter element, and unnecessary accidents are caused.

In some embodiments, the pipeline detection device includes a first pressure switch, where the first pressure switch is disposed on the water purifying pipeline, and if the pressure of the first pressure switch is lower than a first pressure value and is in a closed state, it is determined that the water purifying pipeline leaks.

The beneficial effects are that: when the pressure of the first pressure switch is lower than the first pressure value and is in a closed state, the position where the first pressure switch is located is indicated that no water flows through or leakage occurs in front of the first pressure switch, so that the water pressure is insufficient, and water leakage exists in the water purifying pipeline.

In some embodiments, the pipeline detection device further comprises a second pressure switch, the second pressure switch is arranged on the regeneration drain pipeline, and the blockage of the water purifying pipeline is judged according to the fact that the pressure of the second pressure switch is higher than a second pressure value and is in an open state.

The beneficial effects are that: when the pressure of the second pressure switch is higher than the second pressure value and is in an open state, the condition that the water purifying pipeline behind the second pressure switch is blocked is indicated that the pressure at the position where the second pressure switch is positioned is overlarge, so that the second pressure switch is opened for pressure relief and water flows pass through, and the blockage of the water purifying pipeline is obtained.

In some embodiments, the water purification system further comprises a pre-filter disposed at the water inlet end of the water purification line for performing primary physical filtration on raw water.

The beneficial effects are that: the front filter is added at the water inlet end to carry out first physical filtration on impurities such as sediment and the like so as to improve the quality of raw water entering the whole machine, remove large-particle impurities therein and further ensure the service life of the whole machine.

In some embodiments, the water purifier further comprises an internet of things communication module, wherein the internet of things communication module is connected with the water purification system, and the internet of things communication module is used for connecting a cloud end so as to upload health data of the water purifier to the cloud end.

The beneficial effects are that: through thing networking communication module, the user can carry out effective monitoring from thing networking platform to purifier's running condition, filter core life-span data to can be targeted with the health monitoring data uploading of complete machine to the high in the clouds, make things convenient for the backstage maintainer in time to know purifier service condition, conveniently in time overhaul and maintain.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram showing an overall connection structure of a water purifier in which a control valve group is in a first state according to an embodiment of the present invention;

FIG. 2 is a schematic diagram showing the overall connection structure of a water purifier in which a control valve group is in a second state according to an embodiment of the present invention;

FIG. 3 is a schematic view showing the overall connection structure of a water purifier in which a control valve set is in a third state according to an embodiment of the present invention;

FIG. 4 shows a schematic structural view of a pre-filter cartridge according to one embodiment of the invention;

FIG. 5 shows a schematic structural view of a polishing cartridge according to an embodiment of the present invention;

fig. 6 is a schematic perspective view illustrating a water purifier according to an embodiment of the present invention;

fig. 7 is a schematic diagram showing an internal structural connection of a water purifier according to an embodiment of the present invention.

Reference numerals illustrate:

1. A filter element is arranged in front; 11. a first filtering unit; 111. a first water inlet; 112. a first water outlet; 12. a second filtering unit; 121. a second water inlet; 122. a second water outlet; 2. a fine filter element; 21. a fine filter core water inlet; 22. a pure water port; 23. a waste water port; 3. a water storage unit; 4. a rear filter element; 5. a heat exchange unit; 6. a heating unit; 61. heating the water inlet; 62. heating the water outlet;

100. A water purifying pipeline; 101. a first electromagnetic valve; 102. a second electromagnetic valve; 103. a third electromagnetic valve; 104. a first inlet valve; 105. a flow sensor; 106. a first pressure switch; 107. a second inlet valve; 108. a pressure stabilizing pump; 200. a thermal regeneration line; 201. a regeneration valve; 202. a non-return valve; 300. a boiling water pipeline; 301. a boiling water intake; 302. a boiling water solenoid valve; 400. a warm water pipeline; 401. a warm water intake; 402. a warm water solenoid valve; 500. a regeneration drain line; 501. regenerating a drain valve; 502. a second pressure switch; 600. a temperature adjusting pipeline; 601. a temperature regulating valve; 700. sterilizing the drain line; 701. sterilizing the drain valve; 800. a waste water pipeline; 801. a waste water valve; 900. and a housing.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Embodiments of the present invention are described below with reference to fig. 1 to 7.

As shown in fig. 1 to 5, according to an embodiment of the present invention, there is provided a water purifier including a water purification system and a heat regeneration device, wherein the water purification system includes a pre-cartridge 1, a water storage unit 3, a heating unit 6 and a heat exchange unit 5 sequentially connected in series to a water purification pipeline 100, the pre-cartridge 1 includes an active carbon component, the pre-cartridge 1 has a first water inlet 111, a first water outlet 112, the water storage unit 3 communicates with the first water outlet 112, the heating unit 6 has a heating water inlet 61, a heating water outlet 62, the heating water outlet 62 is connected with a boiling water intake 301, the heat exchange unit 5 has a first heat exchange channel and a second heat exchange channel, both ends of the first heat exchange channel are respectively connected with the water storage unit 3, the heating water inlet 61, one end of the second heat exchange channel is connected with the heating water outlet 62, the heat regeneration device includes a heat regeneration pipeline 200, a regeneration water drain 500 and a control valve set, one end of the heat regeneration pipeline 200 is connected with the other end of the second heat exchange channel, the other end of the heat regeneration pipeline 200 is connected with the first water outlet 112, the regeneration pipeline 500 is connected with the first water inlet 111, the control valve set to have a first state of the water storage unit 3 and the first heat exchange channel, the water drain 1 is connected with the first water inlet, the control valve set to a preset water drain 1 is in a normal temperature, and a normal temperature water drain 1 is a normal temperature water, and a normal temperature water flow from the pre-water drain 1 is converted to the pre-set to the first water storage unit 1, and a normal temperature water drain 1, and a normal temperature water is converted to the water and a normal temperature water drain 1, and a normal temperature water is heated to the water through the first water drain 1.

The water purification system of this embodiment can control the operating condition of control valves according to the water purification amount of water purification system, specifically, when the water purification amount of water purification system reaches the preset nominal value, control valves switch to first state, in order to switch on water storage unit 3 and first heat transfer passageway, make the boiling water of heating unit 6 flow into second heat transfer passageway and with the normal atmospheric temperature water heat transfer from water storage unit 3 in the first heat transfer passageway form the hot water of preset value, hot water flows through heat regeneration pipeline 200, first delivery port 112 flows into leading filter element 1 and realizes the reverse hot washing regeneration to leading filter element 1, the hot water after the washing passes through first water inlet 111 and regeneration drain line 500 and discharges, the water purification amount of water purification system of this application reaches the preset nominal value and can start to carry out the heat washing to leading filter element 1, wash away the impurity that the active carbon adsorbs, disinfect and make active carbon fiber regeneration simultaneously, thereby realize effectively prolonging the life of leading filter element 1, reduce its frequency, and reduce the cost, and increase the water purification system's water purification amount, the life of water purification system, simultaneously set up through heat transfer unit 5 and heat transfer unit 6 and heat water purification system's heating unit 6 and the cooling water after the water purification system is directly need not be adjusted in the rated power of heating unit 6 after the water heating unit is cooled, and the water heating unit is not required to be adjusted in the rated power of heating unit, and the user is cooled down after the heating unit is directly has been used to the heating unit is required to be cooled.

The water purifying pipe 100 is connected to a raw water inlet end, and raw water is typically tap water, so as to purify the tap water. A first water inlet valve 104 is provided in the water purification line 100 upstream of the pre-filter cartridge 1 to facilitate control of the flow of tap water.

As shown in fig. 1, 4 and 5, the pre-filter 1 of the present application is a composite PCB filter. In some embodiments, the pre-filter cartridge 1 comprises a first filter unit 11, the first filter unit 11 comprising an activated carbon composition, the first water inlet 111 being connected to an inlet of the first filter unit 11, the first water outlet 112 being connected to an outlet of the first filter unit 11.

With the above arrangement, raw water (tap water) entering from the water inlet end flows into the first filtering unit 11 after flowing through the first water inlet 111, flows out through the first water outlet 112 after being filtered by the first filtering unit 11, so as to realize primary filtration of the raw water, and filter out large-particle impurities in the raw water.

For example, the first filter unit 11 may be a filter core synthesized by PP cotton, activated carbon, and ultrafiltration, and may adsorb impurities such as sediment in raw water, and also remove residual chlorine in raw water, thereby realizing coarse filtration of raw water.

In some embodiments, the pre-filter cartridge 1 has a second water inlet 121 and a second water outlet 122, the pre-filter cartridge 1 further comprises a second filter unit 12 arranged independently of the first filter unit 11, the second water inlet 121 is connected to an inlet of the second filter unit 12, the second water outlet 122 is connected to an outlet of the second filter unit 12, and the water storage unit 3 is connected to the second water outlet 122.

Pure water flows into the second filtering unit 12 through the second water inlet 121, the second filtering unit 12 can filter the pure water again to remove trace elements, adjust the pH value and drink taste, and the filtered pure water flows to the water intake end through the second water outlet 122 for the user to take and/or flows to the water storage unit 3 for storage.

For example, the second filter unit 12 may be a filter cartridge containing an activated carbon component.

Specifically, the pre-filter element 1 has a filter shell, the first water inlet 111, the first water outlet 112, the second water inlet 121 and the second water outlet 122 are all arranged on the filter shell, the first filter unit 11 and the second filter unit 12 are mutually independent and arranged in the filter shell, and the first filter unit 11 and the second filter unit 12 are integrally arranged in the same filter shell, so that the whole machine has the effects of more compact structure and reduced volume.

In some embodiments, the water making device further comprises a fine filter element 2, the fine filter element 2 is provided with a fine filter element water inlet 21 and a pure water outlet 22, the fine filter element water inlet 21 is connected with the first water outlet 112, and the pure water outlet 22 is connected with the second water inlet 121.

The fine filter element 2 can perform fine filtration on the raw water filtered by the first filter unit 11, and the filtered pure water flows into the second filter unit 12 through the pure water port 22 and the second water port 121 to perform secondary filtration so as to ensure water quality.

The filtering precision of the fine filter element 2 is higher than that of the pre-filter element 1, the fine filter element 2 is arranged at the downstream of the first filter unit 11, and can further purify raw water filtered by the first filter unit 11 with high precision, and the fine filter element is a core treatment filter element of the water making device.

The specific form, for example, the fine filter element 2 may be a reverse osmosis membrane filter element (RO filter element), a nanofiltration membrane filter element, or the like, and is specifically selected according to the filtration requirement, and the embodiment is not particularly limited.

Because the particle size of the fine filter element 2 is small, the raw water has larger passing resistance, and therefore, the pressure stabilizing pump 108 is arranged on the water making pipeline connected between the first filter unit 11 and the fine filter element 2 so as to pressurize the raw water to make the raw water pass through the fine filter element 2, thereby improving the filtering efficiency.

In some embodiments, a second inlet valve 107 is also provided on the water production line connecting the first filter unit 11 and the fine filter cartridge 2, the second inlet valve 107 being located upstream of the pressure stabilizing pump 108.

The second water inlet valve 107 can control and regulate raw water flowing to the fine filter element 2, and can cut off a water making pipeline when the water purifying system stops working, so that the condition that the raw water continuously flows into the fine filter element 2 to cause filter element damage is avoided.

As shown, in some embodiments, the fine filter element 2 further has a waste water port 23, and the water production apparatus further includes a waste water pipeline 800, and the waste water pipeline 800 communicates with the waste water port 23.

When the fine filter element 2 filters, corresponding waste water is generated, the waste water flows into the waste water pipeline 800 through the waste water port 23, and is discharged to the outside through the waste water pipeline 800.

A waste water valve 801 is provided on the waste water line 800 to control the connection or disconnection of the waste water line 800.

The water storage unit 3 is used for storing filtered purified water, is convenient for a user to take, and can avoid long-time operation of the water making device.

The water storage unit 3 is a device with water driving force, and may be a pressure tank, a water storage device with a self-priming pump or a water pump, or the like.

The heating unit 6 may heat the purified water to boiling, and for example, the heating unit 6 may be a hot tank or a water storage device with a heating body.

The heat exchange unit 5 may be a heat exchanger, during heat exchange, the boiling water of the heating unit 6 flows into the second heat exchange channel, the normal temperature water of the water storage unit 3 flows into the first heat exchange channel, and the heat of the boiling water exchanges heat to the hot water in the first heat exchange channel through radiation, so that the boiling water is exchanged to the hot water with a preset value.

It should be noted that the preset value may be set according to the hot water temperature required by the thermal regeneration mode, and the preset value may be a specific temperature value or a temperature range value, for example, but not limited to, 45±5 ℃.

The heat regeneration pipeline 200 is used for realizing heat regeneration by hot water after heat exchange flowing to the front filter element 1, and the heat regeneration pipeline 200 can be in sealing connection with the first water outlet 112, or the heat regeneration pipeline 200 is connected to a water making pipeline between the first filter unit 11 and the fine filter element 2. It should be noted that, when the thermal regeneration line 200 is connected to the water production line between the first filter unit 11 and the fine filter element 2, the connection is located upstream of the second water inlet valve 107, so as to avoid damage caused by the hot water flowing back to the fine filter element 2 in the thermal regeneration line 200.

In some embodiments, a regeneration valve 201 is disposed on the thermal regeneration pipeline 200, the regeneration valve 201 is used to control on-off of the thermal regeneration pipeline 200, the regeneration valve 201 is opened when the water purification system executes the thermal regeneration mode, and is closed when the water purification system works for water purification.

In some embodiments, the thermal regeneration line 200 is further provided with a check valve 202, where the check valve 202 is disposed downstream of the regeneration valve 201, and the check valve 202 may allow the hot water in the thermal regeneration line 200 to flow toward the pre-filter 1 to block the raw water flowing out of the pre-filter 1, thereby preventing the raw water from flowing back into the thermal regeneration line 200.

The regeneration drain line 500 is used to drain the hot water after flushing in the pre-cartridge 1, thereby maintaining the hot water flushing the pre-cartridge 1 in a flowing state and securing a thermal regeneration effect on the pre-cartridge 1.

The regeneration drain line 500 may be in particular connected with the first water inlet 111 in a sealed manner, or the regeneration drain line 500 may be connected to a water production line upstream of the pre-filter element 1. When the regeneration drain line 500 is connected to the water production line upstream of the pre-filter element 1, the connection is located downstream of the first water intake valve 104, and when the first water intake valve 104 is closed, tap water is prevented from flowing into the regeneration drain line 500.

In some embodiments, the regeneration drain line 500 is provided with a regeneration drain valve 501, the regeneration drain valve 501 being opened when drainage is required and closed when the water purification system is clean to ensure proper operation of the water purification system.

In some embodiments, the water purification system further comprises a flow sensor 105, the flow sensor 105 is disposed on the water purification pipeline 100, and the flow sensor 105 is configured to control the control valve group to switch to the first state when detecting that the water purification amount of the water purification system reaches a preset nominal value.

The water flow of the water purifying pipeline 100 is detected in real time through the flow sensor 105, and when the water purifying amount of the water purifying system reaches a preset nominal value, the control valve group is controlled to be switched to a first state, so that the heat washing regeneration of the front filter element 1 is realized, and the automatic control switching is realized.

Specifically, the current water purifying amount of the water purifier is calculated according to the flow detection data of the flow sensor 105, the comparison analysis is performed on the current water purifying amount and a preset nominal value (total water purifying amount value) through the central processing, whether the heat washing regeneration of the front filter element 1 is needed or not is judged, and if the heat washing regeneration is needed, the heat washing regeneration is performed by controlling the electromagnetic valve group to be switched to the first state.

The principle of operation of the flow sensor 105: the inside of the water purifier is provided with a rotary impeller with magnetic poles, the rotary impeller rotates under the action of water flow, a Hall sensor for inducing the magnetic pole change is arranged in the flow sensor 105, and the central processing unit judges the net water quantity of the water purifier by judging the pulse signal times of the magnetic pole change.

For example, but not limited to, the flow sensor 105 may be disposed on the clean water line 100 upstream of the pre-cartridge 1.

The pre-filter 1 needs to be flushed and cooled in order to protect the rear end from high temperature components (e.g. the fine filter 2) because hot water remains in the pre-filter 1 and the temperature is high after the pre-filter 1 is flushed, so in some embodiments, the control valve set further has a second state for conducting the water storage unit 3 and the thermal regeneration pipeline 200, and the control valve set is switched to the second state based on the reverse thermal flushing and regeneration of the pre-filter 1, so that the warm water in the water storage unit 3 flows through the thermal regeneration pipeline 200, the first water outlet 112, the pre-filter 1, the first water inlet 111 and the regeneration drain pipeline 500 to realize flushing and cooling of the pre-filter 1.

After the back-flushing regeneration of the front-end filter element 1 is finished, the control valve group is controlled to be switched to a second state to conduct the water storage unit 3 and the thermal regeneration pipeline 200, so that the warm water in the water storage unit 3 flows through the thermal regeneration pipeline 200 and the first water outlet 112 to flow into the front-end filter element 1 to realize flushing cooling of the front-end filter element 1, and cooled water is discharged through the first water inlet 111 and the regeneration drainage pipeline 500, so that the hot residual hot water of the front-end filter element 1 is quickly replaced, the quick cooling of the front-end filter element 1 is realized, the water taking waiting time of a user is reduced, and meanwhile, damage to the front-end filter element 2 caused by the hot water flowing into the rear end is avoided, and the service life of the front-end filter element is shortened.

In some embodiments, the water purification system further comprises a warm water pipeline 400, the warm water pipeline 400 is connected with the outlet of the second heat exchange channel and the inlet of the thermal regeneration pipeline 200, the warm water pipeline 400 is connected with a warm water intake 401 and a disinfection drainage pipeline 700, the control valve group further has a third state for conducting the heating unit 6 and the warm water pipeline 400, and the control valve group is switched to the third state based on the water purification system being in a disinfection sterilization mode, so that the boiling water of the heating unit 6 flows into the warm water pipeline 400 for high-temperature sterilization and disinfection and is discharged through the disinfection drainage pipeline 700.

When the water purification system is in the disinfection and sterilization mode, the control valve group is switched to a third state to conduct the heating unit 6 and the warm water pipeline 400, so that the boiling water of the heating unit 6 flows into the warm water pipeline 400 to realize high-temperature disinfection and sterilization of the warm water pipeline 400, and finally is discharged through the disinfection and drainage pipeline 700, and the drinking water health of a user is ensured.

Further, a sterilizing drain valve 701 is provided on the sterilizing drain line 700, and the sterilizing drain valve 701 is opened only when the water purification system is in a sterilizing mode to drain sterilized boiling water in the warm water line 400.

It should be noted that, since the warm water pipeline 400 is connected to the outlet of the second heat exchange channel and the inlet of the thermal regeneration pipeline 200, when the pre-filter element 1 needs to be thermally washed and regenerated, the warm water intake 401 is closed, the control valve group is switched to the first state to conduct the water storage unit 3 and the first heat exchange channel, so that the boiling water of the heating unit 6 flows into the second heat exchange channel and exchanges heat with the normal temperature water from the water storage unit 3 in the first heat exchange channel to form hot water with a preset value, and the hot water flows through the warm water pipeline 400, the thermal regeneration pipeline 200 and the first water outlet 112 to flow into the pre-filter element 1 for thermally washing.

It can be understood that when the user needs to take warm water, the regeneration valve 201 is closed, the control valve group is switched to the first state to conduct the water storage unit 3 and the first heat exchange channel, so that the boiling water of the heating unit 6 flows into the second heat exchange channel and exchanges heat with the normal temperature water from the water storage unit 3 in the first heat exchange channel to form hot water with a preset value, and the hot water flows through the warm water pipeline 400 to the warm water intake 401 for the user to take.

That is, when the control valve group is switched to the first state, the control valve group can be used for taking warm water, and also can be used for carrying out hot washing regeneration on the pre-filter element 1, and the two states can be mutually independent operation or can be simultaneously operated, namely, when the pre-filter element 1 is subjected to hot washing regeneration, the warm water intake 401 can be opened to take warm water.

In some embodiments, the control valve set includes a first solenoid valve 101, a second solenoid valve 102, and a third solenoid valve 103, wherein an inlet of the first solenoid valve 101 is connected to the water storage unit 3, an outlet of the first solenoid valve 101 is connected to the first heat exchange channel, an inlet of the second solenoid valve 102 is connected to the water storage unit 3, an outlet of the second solenoid valve 102 is connected to the warm water line 400, an inlet of the third solenoid valve 103 is connected to the heating unit 6, an outlet of the third solenoid valve 103 is connected to an inlet of the second solenoid valve 102, the first solenoid valve 101 is opened based on the control valve set being in a first state, the second solenoid valve 102 is opened based on the control valve set being in a second state, both the second solenoid valve 102 and the third solenoid valve 103 are opened based on the control valve set being in a third state, so that the boiling water of the heating unit 6 flows through the second solenoid valve 102 and the third solenoid valve 103 into the warm water line 400 and is discharged through the disinfection drain line 700.

When the control valve group is in a first state, the first electromagnetic valve 101 is opened, normal-temperature water of the water storage unit 3 flows into the first heat exchange channel through the first electromagnetic valve 101, and boiling water of the heating unit 6 flows into the second heat exchange channel and exchanges heat with normal-temperature water in the first heat exchange channel to form hot water with a preset value so as to thermally flush the front-end filter element 1; when the control valve group is in the second state, the second electromagnetic valve 102 is opened, and the warm water of the water storage unit 3 flows through the second electromagnetic valve 102, the warm water pipeline 400 and the thermal regeneration pipeline 200 to enter the pre-filter element 1 for flushing and cooling; when the control valve group is in the third state, both the second solenoid valve 102 and the third solenoid valve 103 are opened, so that the boiling water of the heating unit 6 flows through the second solenoid valve 102 and the third solenoid valve 103 into the warm water pipe 400 to sterilize it at high temperature and then is discharged through the sterilizing drain pipe 700.

Of course, in other embodiments, the control valve set may be configured as a multi-channel valve, where the multi-channel valve has a first channel, a second channel and a third channel, the first channel is connected to the first heat exchange channel and the water storage unit 3, the second channel is connected to the water storage unit 3 and the warm water pipe 400, the third channel is connected to the heating unit 6 and the second channel, when the control valve set is in the first state, the first channel is turned on, when the control valve set is in the second state, the second channel is turned on, and when the control valve set is in the third state, both the second channel and the third channel are turned on.

Because the temperature of the normal temperature water of the water storage unit 3 is constant (consistent with the environment), and the temperature of the boiling water of the heating unit 6 is constant, the hot water subjected to heat exchange by the heat exchange unit 5 is generally at a specific temperature, and factors such as environmental temperature change are likely to influence the hot water subjected to heat exchange by the heat exchange unit 5 not to be at a preset value.

In some embodiments, the temperature adjusting device comprises a temperature adjusting pipeline 600 and a temperature adjusting valve 601, wherein two ends of the temperature adjusting pipeline 600 are respectively connected with the heating unit 6 and the warm water pipeline 400, the temperature adjusting valve 601 is arranged on the temperature adjusting pipeline 600, and the temperature adjusting valve 601 is used for being opened when detecting that the temperature of hot water in the warm water pipeline 400 is lower than a preset value, so that the boiling water in the heating unit 6 flows through the temperature adjusting pipeline 600 and flows into the warm water pipeline 400.

When the temperature of warm water taken by a user is lower than a preset value or the temperature of hot water for hot flushing the front filter element 1 is lower than a preset value, the temperature regulating valve 601 is opened, so that the boiling water of the heating unit 6 flows into the warm water pipeline 400 through the temperature regulating pipeline 600 to be mixed with the hot water in the warm water pipeline 400, and the temperature of the hot water is raised to reach the preset value.

It can be understood that when the user needs to increase the temperature of the warm water taken by the user, or needs to increase the temperature of the hot water for hot flushing the front filter element 1, that is, the preset value needs to be increased, the temperature adjusting valve 601 is opened to enable the boiling water to enter the warm water pipeline 400 through the temperature adjusting pipeline 600 to be mixed with the hot water after heat exchange, so as to achieve the purpose of increasing the temperature of the hot water.

In this embodiment, the heating water outlet 62 is connected to the boiling water intake 301 through the boiling water pipeline 300, the inlet of the second heat exchange channel is connected to the boiling water intake pipeline, and one end of the temperature adjustment pipeline 600 is connected to the boiling water pipeline 300.

As shown in fig. 3, 7 and 6, a boiling water solenoid valve 302 is provided at the boiling water intake 301 to control the opening or closing of the boiling water intake 301 by the boiling water solenoid valve 302, and correspondingly, a warm water solenoid valve 402 is provided at the warm water intake 401 to control the opening or closing of the warm water intake 401 by the warm water solenoid valve 402, and the boiling water intake 301 and the warm water intake 401 are arranged in parallel on the housing 900 of the water purifier, so that a user can conveniently take boiling water or warm water as required.

Because the sealing of the joint of the water purifying pipeline 100 of the whole machine fails, the long-term water leakage of the whole machine causes the distortion and inaccuracy of the detection data of the flow sensor 105, so that the false judgment is made to start the hot washing regeneration of the front filter element 1, and unnecessary accidents are caused.

In some embodiments, the pipeline inspection device includes a first pressure switch 106, the first pressure switch 106 is disposed on the clean water pipeline 100, and if the pressure of the first pressure switch 106 is lower than a first pressure value and is in a closed state, it is determined that the clean water pipeline 100 leaks.

When the pressure of the first pressure switch 106 is lower than the first pressure value and is in the closed state, it indicates that no water flows through the position where the first pressure switch 106 is located or leakage occurs in front of the first pressure switch 106, so that the water pressure is insufficient, and accordingly, it is determined that water leakage exists in the water purifying pipeline 100.

Specifically, the first pressure switch 106 is a low pressure switch, and is in a closed state when the pressure is lower than 0.15Mpa ± 0.05Mpa, and is in an open state when the pressure of the first pressure switch 106 is 0.25Mpa ± 0.05Mpa during normal water intake of the water purification pipeline 100, so that water flow is facilitated.

The first pressure switch 106 may be provided on the water purifying pipe 100 between the pre-cartridge 1 and the fine cartridge 2 to facilitate detection of whether there is water leakage at the front end of the water purifying pipe 100, but is not limited thereto.

In some embodiments, the pipeline inspection device further includes a second pressure switch 502, where the second pressure switch 502 is disposed on the regeneration drain pipeline 500, and determines that the water purifying pipeline 100 is blocked according to the pressure of the second pressure switch 502 being higher than the second pressure value and being in an open state.

When the pressure of the second pressure switch 502 is higher than the second pressure value and is in the open state, it is indicated that the water purifying pipeline 100 behind the second pressure switch 502 is blocked, so that the pressure at the position where the second pressure switch 502 is located is too high, and the pressure is released, so that water flows through, and the water purifying pipeline 100 is blocked.

Specifically, the second pressure switch 502 is a high-pressure switch, and is opened when the pressure is higher than 0.25mpa±0.05Mpa, so as to release pressure in time when the water purifying pipeline 100 is blocked.

When the pre-filter element 1 is subjected to the thermal washing regeneration, the second pressure switch 502 is turned on to facilitate the hot water to be discharged through the regeneration drain line 500.

In some embodiments, the water purification system further includes a pre-filter disposed at the water inlet end of the water purification pipeline 100 for performing primary physical filtration on raw water.

Considering that the water quality of each region is also quite different due to the difference of the using regions, a large amount of large-particle impurities such as silt and stones are possibly contained in the water, if the water is directly connected into the water purifier without physical filtration, the large amount of silt gushes in to cause the blockage of the whole machine and the filter element thereof, so that the service life of the filter element is rapidly reduced, and the service life of the whole machine is greatly reduced.

In particular, the pre-filter may be, but is not limited to, a screen.

In some embodiments, the water purifier further comprises an internet of things communication module, wherein the internet of things communication module is connected with the water purification system and is used for connecting a cloud end to upload health data of the water purifier to the cloud end.

Through thing networking communication module, the user can carry out effective monitoring from thing networking platform to purifier's running condition, filter core life-span data to can be targeted with the health monitoring data uploading of complete machine to the high in the clouds, make things convenient for the backstage maintainer in time to know purifier service condition, conveniently in time overhaul and maintain. Meanwhile, if the water purifier has the requirement of drinking water charge for public charge drinking water, the water purifier also can be used for taking water for drinking after the online payment function is realized through the function of the Internet of things.

Although purified pure water is stored in the water storage unit 3, if the storage time is too long, the water quality of the purified water also changes, for example, precipitation occurs, and therefore, in some embodiments, the water purification system further comprises a post-filter element 4, and the post-filter element 4 is arranged between the water storage unit 3 and the heat exchange unit 5, so that the purified water flowing out of the water storage unit 3 can be filtered again, and the water quality is improved.

In order to prevent the water in the water storage unit 3 or the boiled water in the heating unit 6 from flowing back to the second filter unit 12 of the pre-cartridge 1, a check valve may be provided in the purified water pipe 100 between the second water outlet 122 and the water storage unit 3, and the check valve may only allow the purified water in the second water outlet 122 to flow to the water storage unit 3 and prevent the water from flowing back to the second water outlet 122.

In order to facilitate understanding of the water purification system of this embodiment, the following description will be made with reference to fig. 1 to 7 of the specification:

When the water purification system is normally used, raw water flows into the water purification pipeline 100, firstly flows into the first filtering unit 11 of the pre-filter element 1 for primary filtering, large particle impurities such as sediment in water are filtered, then flows into the fine filter element 2 for deep filtering, peculiar smell and color in the water are filtered, then flows into the second filtering unit 12 of the pre-filter element 1 for secondary filtering to adjust the taste of water quality, finally flows into the water storage unit 3 for storage, or flows into the heating unit 6 for heating into boiling water, when a user takes the boiling water, the boiling water intake 301 can be opened, the boiling water flows from the heating water outlet 62 to the boiling water intake 301 through the boiling water pipeline 300, when the user takes the warm water, the warm water intake 401 can be opened, the boiling water of the heating unit 6 flows into the second heat exchange channel and the normal temperature water from the water storage unit 3 for heat exchange to form hot water with a preset value, and the hot water flows into the warm water intake 401 through the warm water pipeline 400.

As shown in fig. 1, when the flow sensor 105 detects that the water purifying amount of the water purifying system reaches a preset nominal value, the water purifying system stops producing water, the control valve group is switched to a first state, the first electromagnetic valve 101, the regeneration valve 201 and the regeneration drain valve 501 are all opened, normal-temperature water of the water storage unit 3 flows into the first heat exchange channel through the first electromagnetic valve 101 and exchanges heat with boiling water from the heating unit 6 in the second heat exchange channel, if the temperature of the hot water after heat exchange is lower than the preset value, the temperature regulating valve 601 is opened, the boiling water flows into the warm water pipeline 400 through the temperature regulating pipeline 600 to mix and heat the hot water, the hot water reaching the preset value flows into the pre-filter element 1 through the warm water pipeline 400, the thermal regeneration pipeline 200 and the first water outlet 112, the pre-filter element 1 is subjected to thermal flushing regeneration, and the hot water after flushing flows into the regeneration drain pipeline 500 through the first water inlet 111 to be discharged;

As shown in fig. 2, after the thermal washing of the pre-filter 1 is finished, the control valve group is in the second state, the second electromagnetic valve 102, the regeneration valve 201 and the regeneration drain valve 501 are all opened, normal-temperature water of the water storage unit 3 flows through the warm water pipeline 400 and the thermal regeneration pipeline 200 through the second electromagnetic valve 102 and flows into the pre-filter 1 through the thermal regeneration pipeline 200 to wash and cool the pre-filter 1, and cooled water is discharged through the first water inlet 111 and the regeneration drain pipeline 500;

As shown in fig. 3, when the water purification system is in the sterilization mode, the control valve group is switched to the third state, and the second solenoid valve 102, the third solenoid valve 103 and the sterilization drain valve 701 are all opened, so that the boiling water of the heating unit 6 flows into the warm water pipe 400 through the second solenoid valve 102 and the third solenoid valve 103 to sterilize it at high temperature, and is then discharged through the sterilization drain pipe 700.

Although the embodiments of the present application have been described with reference to the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the application, and such modifications and variations fall within the scope of the application as defined by the claims.

Claims

1. A water purifier, comprising:

A water purification system, comprising a pre-filter element (1), a water storage unit (3), a heating unit (6) and a heat exchange unit (5) which are sequentially connected in series to a water purification pipeline (100), wherein the pre-filter element (1) comprises an activated carbon component, the pre-filter element (1) has a first water inlet (111) and a first water outlet (112), the water storage unit (3) and the first water outlet (112) are connected, the heating unit (6) has a heating water inlet (61) and a heating water outlet (62), the heating water outlet (62) is connected to a boiling water intake (301), and the heat exchange unit (5) has a first heat exchange channel and a second heat exchange channel, the two ends of the first heat exchange channel are respectively connected to the water storage unit (3) and the heating water inlet (61), and one end of the second heat exchange channel is connected to the heating water outlet (62);

A heat regeneration device, comprising a heat regeneration pipeline (200), a regeneration drainage pipeline (500) and a control valve group, wherein one end of the heat regeneration pipeline (200) is connected to the other end of the second heat exchange channel, the other end of the heat regeneration pipeline (200) is connected to the first water outlet (112), and the regeneration drainage pipeline (500) is connected to the first water inlet (111);

The control valve group has a first state for conducting the water storage unit (3) and the first heat exchange channel. When the amount of purified water in the water purification system reaches a preset nominal value, the control valve group switches to the first state so that the boiling water in the heating unit (6) flows into the second heat exchange channel and exchanges heat with the normal temperature water from the water storage unit (3) in the first heat exchange channel to form hot water of a preset value. The hot water flows through the heat regeneration pipeline (200), the first water outlet (112), the pre-filter element (1), the first water inlet (111) and the regeneration drainage pipeline (500) to achieve reverse hot flushing regeneration of the pre-filter element (1).

2. The water purifier according to claim 1 is characterized in that the water purification system also includes a flow sensor (105), which is arranged in the water purification pipeline (100), and the flow sensor (105) is used to control the control valve group to switch to the first state when it is detected that the water purification volume of the water purification system reaches the preset nominal value.

3. The water purifier according to claim 1 is characterized in that the control valve group also has a second state of connecting the water storage unit (3) and the thermal regeneration pipeline (200), and the control valve group is switched to the second state based on the completion of the reverse hot flushing regeneration of the pre-filter (1), so that the normal temperature water in the water storage unit (3) flows through the thermal regeneration pipeline (200), the first water outlet (112), the pre-filter (1), the first water inlet (111) and the regeneration drainage pipeline to achieve flushing and cooling of the pre-filter (1).

4. The water purifier according to claim 3, characterized in that the water purification system further comprises a warm water pipeline (400), the warm water pipeline (400) is connected to the outlet of the second heat exchange channel and the inlet of the heat regeneration pipeline (200), and the warm water pipeline (400) is connected to a warm water intake (401) and a disinfection drainage pipeline (700);

The control valve group also has a third state for connecting the heating unit (6) and the warm water pipeline (400). Based on the water purification system being in a disinfection mode, the control valve group switches to the third state to allow the boiling water of the heating unit (6) to flow into the warm water pipeline (400) for high-temperature disinfection and be discharged through the disinfection drainage pipeline (700).

5. The water purifier according to claim 4, characterized in that the control valve group comprises:

A first solenoid valve (101), wherein an inlet of the first solenoid valve (101) is connected to the water storage unit (3), and an outlet of the first solenoid valve (101) is connected to the first heat exchange channel;

A second solenoid valve (102), wherein an inlet of the second solenoid valve (102) is connected to the water storage unit (3), and an outlet of the second solenoid valve (102) is connected to the warm water pipeline (400);

a third solenoid valve (103), wherein an inlet of the third solenoid valve (103) is connected to the heating unit (6), and an outlet of the third solenoid valve (103) is connected to an inlet of the second solenoid valve (102);

Based on the control valve group being in the first state, the first solenoid valve (101) is opened; based on the control valve group being in the second state, the second solenoid valve (102) is opened; based on the control valve group being in the third state, both the second solenoid valve (102) and the third solenoid valve (103) are opened, so that the boiling water of the heating unit (6) flows through the second solenoid valve (102) and the third solenoid valve (103) into the warm water pipeline (400) and is discharged through the disinfection drainage pipeline (700).

6. The water purifier according to claim 4 or 5, characterized in that the water purification system further comprises a temperature regulating device, and the temperature regulating device is used to adjust the temperature of the hot water flowing out of the second heat exchange channel to reach the preset value.

7. The water purifier according to claim 6 is characterized in that the temperature control device comprises a temperature control pipeline (600) and a temperature control valve (601), the two ends of the temperature control pipeline (600) are respectively connected to the heating unit (6) and the warm water pipeline (400), and the temperature control valve (601) is arranged on the temperature control pipeline (600), and the temperature control valve (601) is used to open when it is detected that the temperature of the hot water in the warm water pipeline (400) is lower than the preset value, so that the boiling water in the heating unit (6) flows through the temperature control pipeline (600) and flows into the warm water pipeline (400).

8. The water purifier according to any one of claims 1 to 5, characterized in that the water purification system further comprises a pipeline detection device, and the pipeline detection device is used to detect leakage and blockage of the water purification pipeline (100).

9. The water purifier according to claim 8 is characterized in that the pipeline detection device comprises a first pressure switch (106), and the first pressure switch (106) is arranged in the water purification pipeline (100). According to the pressure of the first pressure switch (106) being lower than the first pressure value and being in a closed state, it is determined that the water purification pipeline (100) is leaking.

10. The water purifier according to claim 8 is characterized in that the pipeline detection device also includes a second pressure switch (502), and the second pressure switch (502) is arranged in the regeneration drainage pipeline. According to the pressure of the second pressure switch (502) being higher than the second pressure value and being in an open state, it is determined that the water purification pipeline (100) is blocked.

11. The water purifier according to any one of claims 1 to 5, characterized in that the water purification system further comprises a pre-filter, which is arranged at the water inlet end of the water purification pipeline (100) and is used for primary physical filtration of raw water.

12. The water purifier according to any one of claims 1 to 5 is characterized in that the water purifier also includes an Internet of Things communication module, the Internet of Things communication module is connected to the water purification system, and the Internet of Things communication module is used to connect to the cloud to upload the health data of the water purifier to the cloud.