CN221117233U - Water purifying device - Google Patents

Abstract

The utility model relates to the technical field of water purification, and discloses a water purification device, which comprises: the water production pipeline is sequentially connected with a front carbon filter element, a rear carbon filter element and a pure water cylinder in series; a hot water generating device adapted to selectively heat water of the pure water cartridge; the flushing pipeline is sequentially connected with a rear carbon filter element and a front carbon filter element in series; the control valve group is arranged on the water making pipeline and the flushing pipeline, and is used for switching and controlling the water making pipeline to circulate or controlling the flushing pipeline to circulate, so that the hot water generated by the hot water generating device or the normal-temperature water of the pure water cylinder reversely enters the rear carbon filter element and then positively enters the front carbon filter element; the flow direction of water in the water making process is forward, and the carbon-containing filter element is flushed through hot water, so that impurities can be effectively stripped and removed, effective regeneration of activated carbon is realized, the service life of the activated carbon filter element is prolonged, and frequent replacement of the activated carbon filter element is avoided.

Description

Water purifying device

Technical Field

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

Background

The tap water is inevitably polluted by rust, sediment, organic matters, microorganisms and the like in the pipeline network conveying process. With the attention of people on water quality safety, water purifiers with purification functions are gradually accepted by markets. The water purification system of the water purifier generally comprises a pretreatment filter element, a precise filter element and a post-treatment filter element, wherein the pretreatment 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, for example, a reverse osmosis membrane filter element is a core treatment filter element of a water purification system; the post-treatment filter element is used for removing trace elements, adjusting pH, drinking taste and the like.

The active carbon filter element is an indispensable important component in the post-treatment filter element of the water purifier, in the related prior art, the service life of the active carbon filter element can be prolonged by adopting modes of improving carbon materials, manufacturing process, increasing carbon dosage and the like, the replacement frequency is reduced, but the active carbon filter element has failure points, so that the service life of the active carbon filter element is influenced, and the active carbon filter element needs to be replaced frequently.

Disclosure of utility model

In view of the above, the utility model provides a water purifying device to solve the problems of the prior art that the active carbon filter core adopted in the purifying device has a long service life and is frequently replaced.

The present utility model provides a water purifying apparatus, comprising: the water production pipeline is sequentially connected with a front carbon filter element, a rear carbon filter element and a pure water cylinder in series; a hot water generating device adapted to selectively heat the pure water in the pure water tank; the flushing pipeline is sequentially connected with the rear carbon filter element and the front carbon filter element in series; the control valve group is arranged on the water making pipeline and the flushing pipeline, the control valve group is used for switching and controlling the water making pipeline to circulate or controlling the flushing pipeline to circulate, and the flushing pipeline circulates to enable hot water generated by the hot water generating device or normal-temperature water of the pure water cylinder to reversely enter the rear carbon filter element and then positively enter the front carbon filter element; wherein, the flow direction of water in the water production process is positive.

The beneficial effects are that, control valves control the water making pipeline circulation to can realize normal water making. After normal water production is completed, pure water in the pure water cylinder is enabled to be hot water through the hot water generating device, the hot water enters the rear carbon filter element through the control valve group, so that the rear carbon filter element can be backwashed, pollutants of the rear carbon filter element can be effectively stripped and removed in flowing water, effective regeneration of the rear carbon filter element is achieved, then, the hot water enters the front carbon filter element from the rear carbon filter element to be positively flushed, the pollutants of the front carbon filter element can be effectively stripped and removed in flowing water, effective regeneration of the front carbon filter element is achieved, the service life of the active carbon filter element is prolonged, and frequent replacement of the active carbon filter element is avoided.

In an alternative embodiment, the control valve block includes: the first switching valve is suitable for switching the water making pipeline or the flushing pipeline to be communicated with the water inlet of the front carbon filter element; the second switching valve is suitable for switching the water making pipeline or the flushing pipeline to be communicated with the water inlet of the rear carbon filter element;

And the third switching valve is suitable for switching the water making pipeline or the flushing pipeline to be communicated with the water outlet of the rear carbon filter element.

The first switching valve, the second switching valve and the third switching valve are used for switching between the water making pipeline and the flushing pipeline to finish back flushing of the rear carbon filter element and forward flushing of the front carbon filter element, so that regeneration of activated carbon can be realized, and the device is simple and reliable in structure and easy to realize.

In an alternative embodiment, the first switching valve, the second switching valve and the third switching valve are two-way valves, the two-way valves having three ports, two ports of the two-way valves being connected to the water-making line, respectively, and the other port of the two-way valves being connected to the flush line.

The switching is finished before the water making pipeline and the flushing pipeline or between the hot water flushing pipeline and the normal-temperature flushing pipeline by opening or closing the two-way valve, and the switching is easy to realize.

In an alternative embodiment, the water making pipeline includes: one end of the first waterway is connected with the water inlet of the front carbon filter element; one end of the second waterway is connected with the water inlet of the rear carbon filter element; one end of the third waterway is connected with the water outlet of the rear carbon filter element, and the other end of the third waterway is connected with the water inlet of the pure water cylinder; the first switching valve is arranged on the first water path, the second switching valve is arranged on the second water path, the third switching valve is arranged on the third water path, the flushing pipeline comprises a first branch pipeline and a second branch pipeline, one end of the first branch pipeline is connected with a water outlet of the hot water generating device, the other end of the first branch pipeline is connected with one valve port of the third switching valve, and two ends of the second branch pipeline are respectively connected with one valve port of the second switching valve and one valve port of the first switching valve.

In an alternative embodiment, the water purifying device further comprises a reverse osmosis membrane filter element, the reverse osmosis membrane filter element is connected in series on the water making pipeline and is positioned between the front carbon filter element and the rear carbon filter element, a water inlet valve is arranged on the water making pipeline between the front carbon filter element and the reverse osmosis membrane filter element, and the water inlet valve can be selectively opened or closed.

The water inlet valve is arranged on the water making pipeline, and can be opened when water is normally made, so that the water filtered by the front carbon filter element enters the reverse osmosis membrane filter element for further purification. When the activity of the regenerated active carbon is needed, the water inlet valve can be closed, so that hot water flowing out of the water outlet of the front carbon filter element is prevented from entering the reverse osmosis membrane filter element.

In an alternative embodiment, the water purifying device further comprises a wastewater outlet pipeline, and the pre-carbon filter element and the non-high temperature resistant filter element are respectively provided with a wastewater outlet, and the wastewater outlet is connected to the wastewater outlet pipeline.

The beneficial effects are that, can discharge waste water through waste water outlet pipe way.

The hot water generating apparatus includes: the hot tank is provided with a pure water inlet and a hot water outlet, the pure water inlet is connected with the water outlet of the pure water cylinder, and the hot water outlet is connected with the flushing pipeline; or a heating device which is suitable for heating the pure water cylinder so that hot water enters the flushing pipeline from the water outlet of the pure water cylinder.

The water purifier has the beneficial effects that through storing pure water in the hot tank, hot water can enter the flushing pipeline from the hot water outlet of the hot tank, or the pure water cylinder is heated by the heating device to obtain hot water, so that the hot water can enter the flushing pipeline from the water outlet of the pure water cylinder.

Drawings

In order to more clearly illustrate the embodiments of the present utility model 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 utility model, 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 of a water purifying apparatus according to an embodiment of the present utility model;

Fig. 2 is a schematic diagram illustrating the operation of another water purifying apparatus according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram illustrating the operation of a water preparing process of a water purifying apparatus according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram illustrating the operation of a regeneration flushing process of a water purification apparatus according to an embodiment of the present utility model;

FIG. 5 is a schematic diagram illustrating the operation of a cooling and flushing process of a water purifying apparatus according to an embodiment of the present utility model;

Fig. 6 is a flowchart of a water production control method of a water purifying device according to an embodiment of the present utility model.

Reference numerals illustrate:

100. a water purifying device;

101. a first waterway;

102. a second waterway;

103. a third waterway;

104. A first branch pipe;

105. a second branch pipe;

106. A wastewater outlet pipeline;

110. a carbon filter element is arranged in front;

120. A carbon filter element is arranged at the rear end;

130. A pure water drum;

140. A hot water generating device;

150. A control valve group;

151. A first switching valve;

152. A second switching valve;

153. A third switching valve;

154. A water inlet valve;

155. A first outlet valve;

156. a second water outlet valve;

1501. A first valve port;

1502. a second valve port;

1503. A third valve port;

160. A non-high temperature resistant filter element;

170. Preprocessing a filter element;

180. and a booster pump.

Detailed Description

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

The water purification system of the water purifier generally comprises a pretreatment filter element, a precise filter element and a post-treatment filter element, wherein the pretreatment filter element is used for pretreating the entering tap water, and the pretreatment filter element adopts activated carbon to effectively remove oxidative substances such as residual chlorine which damage the RO filter element of the precise filter element.

The process of adsorbing pollutants by the activated carbon mainly comprises physical adsorption and chemical adsorption, wherein the physical adsorption is the adsorption process mainly occurring in the activated carbon, and the adsorption balance can be broken by changing the conditions so as to separate the adsorbate in a resolving way; the chemisorption process is irreversible and essentially the activated carbon surface functional groups form stable complexes with contaminant molecules. In the specific process of adsorbing pollutants by the activated carbon, the activated carbon is mainly subjected to physical adsorption, and after the physical adsorption is close to saturation, the activated carbon is subjected to chemical adsorption intervention and directly and completely fails.

Aiming at the above characteristics of activated carbon adsorption, if a path can be found to break the balance between the activated carbon and the adsorbate, so that physical adsorption is carried out in the reverse direction, and the reaction progress of chemical adsorption is slowed down, then the activated carbon can be regenerated, the adsorption capacity is recovered, and the purpose of prolonging the service life of the activated carbon can be achieved.

The method for prolonging the service life of the carbon filter element by regeneration is mainly realized by physical high temperature, steam or vibration and chemical reagents.

For example, the regeneration of the activated carbon fiber can be realized by a high-temperature steam mode, but the method is suitable for a large-scale purification treatment device in petrochemical industry and environmental protection industry, has high process realization requirement and is not suitable for a household water purifier; the active carbon can recover the adsorption capacity by dredging the gaps of the active carbon, and the self-completion regeneration process can be realized, but the realization device is complex, and the safety of the use process and the drinking water cannot be ensured because of the addition of a flocculating agent; regeneration of the filter element can be realized by a method of immersing high-temperature steam in chlorine dioxide, but the water quality safety cannot be ensured by introducing chemical substance chlorine dioxide; the method can also realize the regeneration of the activated carbon by desorbing the pollutant adsorbed in the activated carbon after being decomposed and reduced in an electrolysis state through an electrochemical method, but the precipitation of metal substances in the solution cannot ensure the safety of drinking water and increases the electricity consumption.

In addition, the small volume is the main development trend of the market at present, the low cost is helpful to promote the competitiveness of the product, and through the analysis, a general technology for more effectively prolonging the service life of the carbon filter element is needed to be found.

If the technology for in-situ promotion of the service life of the carbon filter element can be realized, the problems of short service life and frequent core replacement of the carbon filter element can be solved, the energy-saving and environment-friendly requirements can be met, and the product competitiveness is improved.

Embodiments of the present utility model are described below with reference to fig. 1 to 6.

As shown in fig. 1, according to an aspect of an embodiment of the present utility model, there is provided a water purifying apparatus 100, the water purifying apparatus 100 including: the water making pipeline, the flushing pipeline, the control valve group 150 and the heating device are sequentially connected in series with the front carbon filter element 110, the rear carbon filter element 120, the pure water cylinder 130 and the hot water generating device 140, and the hot water generating device is suitable for heating pure water in the pure water cylinder 130; the flushing pipeline is sequentially connected with a rear carbon filter element 120 and a front carbon filter element 110 in series; the control valve group 150 is arranged on the water making pipeline and the flushing pipeline, the control valve group 150 switches and controls the water making pipeline to circulate or controls the flushing pipeline to circulate, and the flushing pipeline circulates to enable hot water generated by the hot water generating device 140 or normal-temperature water of the pure water cylinder 130 to reversely enter the post-carbon filter element 120 and then positively enter the pre-carbon filter element 110;

Wherein, the flow direction of water in the water production process is positive.

The water purifying device 100 may be a water purifier, the flushing pipeline is used for flushing the front carbon filter element 110 and the rear carbon filter element 120, the pure water drum 130 is a pure water storage part, and various embodiments are possible, for example, the pure water drum 130 is a pure water tank mode in a table type pure water dispenser or the like, and a driving pump is required to be externally connected for water taking or regeneration; or a commercial water purifying and drinking machine or the like in a pressure barrel mode, a drive pump is not required to be externally connected, and a certain volume of purified water can be stored and is driven by pressure to be taken or regenerated. The pure water storage part in the technical scheme is embodied in a pure water box shape.

The temperature of the hot water can break the balance between the carbon and the polluted adsorbent, so that the pollutant is desorbed in a resolving way, and the active carbon recovers part of adsorption capacity and realizes regeneration.

Specifically, the temperature is between the ambient temperature and the boiling point temperature of water, so that the hot water at the temperature has the flushing effect and is safe and simple.

Specifically, the hot water generating device includes: the hot pot is provided with a pure water inlet and a hot water outlet, the pure water inlet is connected with the water outlet of the pure water cylinder, and the hot water outlet is connected with the flushing pipeline. The heating device is suitable for heating the pure water cylinder so that hot water enters the flushing pipeline from the water outlet of the pure water cylinder.

It will be appreciated that the hot tank may be provided with a heating element on the tank body so that water entering the hot tank may become hot water. The heating device can heat the water in the pure water cylinder, so that the water coming out of the pure water cylinder is hot water.

Specifically, the hot water generating device 140 is a heated water outlet portion, which may be a hot tank, or the hot water generating device 140 includes a heating device and a temperature adjusting device. Most of heating devices are stainless steel heating pipes, electric heating wires and the like, purified water in the pure water barrel 130 is quickly heated to a specified temperature through heating, and the temperature adjusting device is connected with the pure water storage part and the heating device and can control the water taking temperature in a heat exchange or water mixing mode and the like, and the power of the heating device is controlled through a control module according to the detected relevant sensing parameters.

Part of the water making pipeline is used as a part of the flushing pipeline, so that the flushing pipeline can finish back flushing. That is, the water line between the water inlet of the post-carbon filter cartridge 120 and the pure water cartridge 130 may be part of the flush line.

When normal water production is completed, the control valve group 150 controls the water production pipeline to be closed, hot water is generated by the hot water generating device 140, and the hot water enters the water outlet of the post-carbon filter element 120 through the first branch pipeline 104, so that the post-carbon filter element 120 can be backwashed, and pollutants of the post-carbon filter element 120 can be effectively stripped and removed in flowing water, thereby realizing effective regeneration of the post-carbon filter element 120.

Then, hot water enters the second branch pipeline 105 from the water inlet of the rear activated carbon, and enters the front carbon filter element 110 through the water inlet of the front carbon filter element 110 to be positively flushed, so that pollutants of the front carbon filter element 110 can be effectively stripped and removed in flowing water, and the effective regeneration of the front carbon filter element 110 is realized.

Further, as further shown with continued reference to fig. 1 and 2, the control valve block 150 includes: the first switching valve 151, the second switching valve 152 and the third switching valve 153, wherein the first switching valve 151 is suitable for switching the water making pipeline or the flushing pipeline to be communicated with the water inlet of the front carbon filter element 110, the second switching valve 152 is suitable for switching the water making pipeline or the flushing pipeline to be communicated with the water inlet of the rear carbon filter element 120, and the third switching valve 153 is suitable for switching the water making pipeline or the flushing pipeline to be communicated with the water outlet of the rear carbon filter element 120.

The first switching valve 151 is disposed on the water making pipeline connected to the water inlet of the pre-carbon filter 110, and the first switching valve 151 is connected to the second branch pipeline 105 of the flushing pipeline, so that the first switching valve 151 can switch between the water making pipeline and the flushing pipeline.

The second switching valve 152 is disposed on the water making pipeline connected to the water inlet of the post-carbon filter 120, and the second switching valve 152 is connected to the second branch pipeline 105 of the flushing pipeline, so that the second switching valve 152 can switch between the water making pipeline and the flushing pipeline.

The third switching valve 153 is disposed on the water making pipeline between the water outlet of the post-carbon filter 120 and the water inlet of the pure water drum 130, and the third switching valve 153 is disposed on the first branch pipeline 104 of the flushing pipeline, so that the third switching valve 153 can switch between the water making pipeline and the flushing pipeline.

When the first switching valve 151, the second switching valve 152 and the third switching valve 153 are all switched to the water producing pipeline, water can be produced normally. When the first switching valve 151, the second switching valve 152 and the third switching valve 153 are all switched to the flushing pipeline, the rear activated carbon core and the front activated carbon core can be flushed in sequence to realize activated carbon regeneration.

Specifically, the first switching valve 151, the second switching valve 152, and the third switching valve 153 are two-way valves having three ports, two ports of the two-way valves being connected to the water making line, respectively, and the other port of the two-way valves being connected to the flushing line.

The first switching valve 151, the second switching valve 152 and the third switching valve 153 may be replaced by two water inlet valves 154, and valve components may be used to control the correct switching of the pipeline.

The two-way valve is provided with three valve ports, and when the two-way valve is closed, the water making pipeline is connected, so that normal water making can be realized. When the two-way valve is opened, the flushing pipeline is communicated, so that flushing of the rear active carbon valve core and the front active carbon valve core can be realized.

For example, the three ports of the bi-directional valve are a first port 1501, a second port 1502 and a third port 1503, respectively, the first port 1501 and the third port 1503 are connected to the water making pipeline, the third port 1503 is connected to the flushing pipeline, and when the bi-directional valve is closed, the first port 1501 and the third port 1503 are opened, so that the water making pipeline is connected; and when the bi-directional valve is open, the first port 1501 and the second port 1502 are open, allowing the flush line to be closed.

Specifically, as shown in fig. 3, the water production line includes: the device comprises a first waterway 101, a second waterway 102 and a third waterway 103, wherein one end of the first waterway 101 is connected with a water inlet of a front carbon filter element 110, one end of the second waterway 102 is connected with a water inlet of a rear carbon filter element 120, one end of the third waterway 103 is connected with a water outlet of the rear carbon filter element 120, and the other end of the third waterway 103 is connected with a water inlet of a pure water barrel 130.

The first switching valve 151 is disposed on the first waterway 101, the second switching valve 152 is disposed on the second waterway 102, the third switching valve 153 is disposed on the third waterway 103, the flushing pipeline includes a first branch pipeline 104 and a second branch pipeline 105, one end of the first branch pipeline 104 is connected with the water outlet of the hot water generating device 140, the other end of the first branch pipeline 104 is connected with one valve port of the third switching valve 153, and two ends of the second branch pipeline 105 are respectively connected with one valve port of the second switching valve 152 and one valve port of the first switching valve 151.

In another embodiment, as further shown in connection with fig. 2, the water purifying apparatus 100 further includes a non-refractory filter element 160, the non-refractory filter element 160 is connected in series to the water making pipeline and is located between the pre-carbon filter element 110 and the post-carbon filter element 120, and a water inlet valve 154 is disposed on the water making pipeline between the pre-carbon filter element 110 and the non-refractory filter element 160, and the water inlet valve 154 can be selectively opened or closed.

The non-high temperature resistant filter element 160 may include a reverse osmosis membrane element, mainly composed of RO membranes, is a core component of the water purifying device 100, has extremely high purification precision, and can filter out all impurity molecules except water molecules, but is not high temperature resistant, so that a hot water pipeline for realizing the regeneration of the activated carbon element needs to avoid the filter element.

Therefore, the water inlet valve 154 is arranged on the water making pipeline, and the water inlet valve 154 can be opened during normal water making, so that the water filtered by the pre-carbon filter element 110 enters the non-high temperature resistant filter element 160 for further purification.

And when the activity of the regenerated activated carbon is required, the water inlet valve 154 can be closed to prevent hot water flowing out of the water outlet of the pre-carbon filter element 110 from entering the non-high temperature resistant filter element 160.

Further, as shown in fig. 4 and 5, the water purifying device 100 further includes a wastewater outlet pipeline 106, and the pre-carbon filter element 110 and the non-refractory filter element 160 are respectively provided with a wastewater outlet connected to the wastewater outlet pipeline 106.

The foregoing pre-carbon filter element 110 needs to drain the wastewater after flushing, and because the water making pipeline is in a closed state in the flushing stage of the pre-carbon filter element 110, the wastewater outlet of the pre-carbon filter element 110 can be the same as the water outlet of the pre-carbon filter element 110, the water outlet of the pre-carbon filter element 110 is connected with a first wastewater pipeline, the first wastewater pipeline is provided with a first water outlet valve 155, and the first water outlet valve 155 is opened, so that the wastewater enters the first wastewater pipeline from the water outlet of the pre-carbon filter element and is then drained from the wastewater outlet pipeline 106.

It will be appreciated that the non-refractory filter element 160 is not refractory, and the waste water in the non-refractory filter element 160 may be discharged after normal water production or after normal water production, that is, the waste water outlet of the non-refractory filter element 160 is connected with a second waste water pipeline, the second waste water pipeline is provided with a second water outlet valve 156, and the second water outlet valve 156 is opened, so that the waste water in the non-refractory filter element 160 may flow out from the waste water outlet of the non-refractory filter element 160 to enter the second waste water pipeline and then be discharged from the waste water outlet pipeline 106.

The inlet valve 154, the first outlet valve 155, and the second outlet valve 156 may be solenoid valves, respectively.

In another embodiment, the water purifying device 100 further comprises a pretreatment filter element 170, the pretreatment filter element 170 is connected in series with the water making pipeline, and a water outlet of the pretreatment filter element 170 is connected with a water inlet of the pre-carbon filter element 110.

Specifically, tap water may be introduced into the pretreatment cartridge 170 through the booster pump 180, and the entire water purification apparatus 100 may be controlled to be turned on or off.

The pretreatment filter 170 is mainly used for removing organic matters, residual chlorine, colloid, heavy metals, silt particles and the like, and has various embodying forms, for example, a pretreatment filter 170 is formed by connecting two filter elements of a first-stage PP cotton or ultrafiltration and a first-stage pre-activated carbon in series, or a pretreatment filter 170 is directly formed by connecting a composite filter element in the form of a first-stage PCB and the like.

Continuing to combine with the illustration of fig. 3, in the normal water making stage, the raw water gap end is connected with a booster pump 180, the raw water gap end enters a pretreatment filter core 170 after being pressurized by the booster pump 180, the pretreatment filter core 170 is connected with a pre-carbon filter core 110 through a first switching valve 151, the pre-carbon filter core 110 is connected with a non-high temperature resistant filter core 160 through a water inlet valve 154, the non-high temperature resistant filter core 160 is provided with a waste water outlet and a pure water outlet, the waste water outlet is connected with a second water outlet valve 156, and the pure water outlet enters the post-carbon filter core through a second switching valve 152 for treatment and then enters the pure water cylinder 130 through a third switching valve 153. The arrow direction shown in fig. 3 is the flow direction of water for normal water production.

With continued reference to fig. 4, in the hot water flushing regeneration stage, when the water inlet valve 154 is closed and the first water outlet valve 155 is opened, the three two-way valves are all opened, hot water generated by the hot water generating device 140 enters the post-carbon filter element 120 through the third switching valve 153, then enters the pre-carbon filter element 110 through the second switching valve 152 and the first switching valve 151, and the hot regeneration wastewater is discharged through the first water outlet valve 155, thus being a hot regeneration pipeline. The arrow direction shown in fig. 4 is the flow direction of the hot water in the hot water rinse.

Continuing to combine with the illustration of fig. 5, in the normal temperature water flushing regeneration stage, when the water inlet valve 154 is closed, the first water outlet valve 155 is opened, the three two-way valves are all opened, normal temperature pure water in the pure water cylinder 130 enters the post-carbon filter element 120 through the third switching valve 153, then enters the pre-carbon filter element 110 through the second switching valve 152 and the first switching valve 151, and normal temperature cooling waste water is discharged through the second water outlet valve 156, thus being a pure water cooling pipeline. The arrow direction shown in fig. 5 is the flow direction of the water in the normal temperature water washing.

It will be appreciated that the water purification apparatus 100 generally includes a cartridge portion, a purified water storage portion, and a heated water outlet portion, as well as water production, thermal regeneration, and cooling lines, and associated ancillary structural components. The filter element part can purify raw water quality and enable the raw water quality to reach the drinking water standard, wherein the fourth-stage filter element is mostly a rear activated carbon filter element, and can be used for adjusting water quality and taste.

The booster pump is used for boosting and controlling the closing and starting of the whole water purifying system, and the water suction pump is used for realizing the water taking function of a user. The pipeline control valve is divided into a wastewater electromagnetic valve and is used for pressurizing, purifying, flushing and discharging water of the reverse osmosis filter element; the water inlet electromagnetic valve is used for controlling the on-off of the single pipeline; the two-way valve is a one-in two-out valve.

The operation of the parts and the closing and starting of the parts are controlled by a program of the whole machine operation, the starting and stopping of the booster pump, the power of the heating device, the temperature regulating device, the closing and starting of the pipeline control valve and the like are controlled according to detected related parameters such as the water purifying amount, the time, the water temperature, the liquid level and the like, the following various operation modes are switched, the user can normally drink water, and meanwhile, the full-automatic in-situ disinfection and regeneration of the activated carbon are realized, including short-time disinfection and long-time regeneration, the water purifying performance is effectively ensured, and the core changing frequency is reduced.

The hot water for disinfection and regeneration and the clean drink outlet share a heating module, the rear activated carbon and the front activated carbon are regenerated in a serial connection mode, the fourth-stage treatment filter element is reversely flushed firstly, the second-stage treatment filter element is positively flushed, the activated carbon filter element is flushed and regenerated, and the flushing pipeline effectively regenerates and simultaneously, the pollutants on the activated carbon can be effectively stripped and removed in flowing water. Setting a program to start a regeneration mode, enabling heated pure water to enter an active carbon filter element through a reverse pipeline, enabling hot water in the active carbon filter element to be in a flowing flushing or static state according to a specified logic control valve, and enabling the hot water to enter a hot water regeneration mode, namely enabling the hot water to flow and flush for specified time or to be static for specified times, starting a cooling mode after the hot water is ended, and enabling the whole regeneration mode to enter a normal water making mode after the whole regeneration mode is ended.

As shown in fig. 6, according to another aspect of the present utility model, there is also provided a water production control method of a water purifying apparatus 100, comprising the steps of:

step S101: the control valve group 150 controls the water making pipeline to circulate to make water;

Step S103: after the water preparation is finished, controlling the flushing pipeline to circulate, so that the hot water generated by the hot water generating device 140 reversely enters the rear carbon filter element 120 and then positively enters the front carbon filter element 110 for hot water flushing;

Step S105: after the hot water flushing is finished, normal-temperature water of the pure water cylinder 130 is controlled to reversely enter the rear carbon filter element 120 and then positively enter the front carbon filter element 110 for cooling.

The control valve block 150 controls the water making pipeline to circulate, so that normal water making can be realized. When normal water production is completed, the hot water generating device 140 generates hot water, the hot water enters the post-carbon filter element 120 through the control valve group 150, so that the post-carbon filter element 120 can be backwashed, pollutants of the post-carbon filter element 120 can be effectively stripped and removed in running water, effective regeneration of the post-carbon filter element 120 is realized, then the hot water enters the pre-carbon filter element 110 from the post-carbon filter element 120 to be forwardly flushed, and pollutants of the pre-carbon filter element 110 can be effectively stripped and removed in the running water, so that effective regeneration of the pre-carbon filter element 110 is realized.

After the flushing is finished, normal-temperature water of the pure water cylinder 130 is controlled to reversely enter the rear carbon filter element 120 and then positively enter the front carbon filter element 110 for cooling, so that the influence on the subsequent normal water production is avoided.

In the water production control method of the water purification apparatus 100, when the control valve block 150 is in the closed state, the water production pipeline circulates; or when the control valve block 150 is in an open state, the flushing line is circulated, and the control of the water purifying apparatus 100 can be simplified.

The hot water flowing through the flushing pipeline flushes or soaks the post-carbon filter element 120 and the pre-carbon filter element 110 in running water.

The water temperature of the hot water is higher than the ambient normal temperature and lower than the boiling point temperature of the water, so that the activated carbon can be fully regenerated.

The control valve group 150 is alternately opened or closed, and can be matched with the normal temperature cooling mode for alternate regeneration and cooling so as to obtain the optimal regeneration effect.

The operation of each part and the opening or closing of the control valve group 150 are controlled by the program of the whole machine operation, and the opening or closing of the booster pump 180, the power of the heating device, the temperature adjusting device, the closing and opening of the pipeline control valve and the like are controlled according to the detected relevant parameters such as the water purifying amount, the time, the water temperature, the liquid level and the like so as to realize the switching of the following various operation modes.

The thermal regeneration mode comprises various modes such as running water flushing, soaking, short time, long time and the like, the water temperature for thermal regeneration is higher than the ambient normal temperature and lower than the water boiling point, and the heating and temperature regulating device is controlled by the system to match with the different temperature regeneration modes.

When the user normally drinks water, the full-automatic in-situ disinfection regeneration of the activated carbon is realized, including short-time disinfection and long-time regeneration, so that the water purification performance can be effectively ensured, and the core replacement frequency can be reduced.

Although embodiments of the present utility model have been described in connection with 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 utility model, and such modifications and variations fall within the scope of the utility model as defined by the appended claims.

Claims (7)

1. A water purification apparatus, comprising:

The water production pipeline is sequentially connected with a front carbon filter element (110), a rear carbon filter element (120) and a pure water cylinder (130) in series;

a hot water generating device (140) adapted to selectively heat the pure water of the pure water cartridge (130);

The flushing pipeline is sequentially connected with the rear carbon filter element (120) and the front carbon filter element (110) in series;

The control valve group (150) is arranged on the water making pipeline and the flushing pipeline, the control valve group (150) is used for switching and controlling the water making pipeline to circulate or controlling the flushing pipeline to circulate, and the flushing pipeline circulates to enable the hot water generating device to reversely enter the generated hot water or normal-temperature water of the pure water cylinder (130) into the rear carbon filter element (120) and then positively enter the front carbon filter element (110);

Wherein, the flow direction of water in the water production process is positive.

2. The water purification apparatus according to claim 1, wherein the control valve group (150) comprises:

a first switching valve (151) adapted to switch the water making pipeline or the flushing pipeline to communicate with the water inlet of the pre-carbon filter element (110);

a second switching valve (152) adapted to switch the water making pipeline or the flushing pipeline to communicate with the water inlet of the post-carbon filter element (120);

and a third switching valve (153) is suitable for switching the water making pipeline or the flushing pipeline to be communicated with the water outlet of the post-carbon filter element (120).

3. The water purification apparatus (100) according to claim 2, wherein the first switching valve (151), the second switching valve (152) and the third switching valve (153) are each a two-way valve having three ports, two ports of the two-way valve being connected to the water making line, respectively, and the other port of the two-way valve being connected to the flushing line.

4. A water purification apparatus (100) according to claim 3, wherein the water production line comprises:

One end of the first waterway (101) is connected with the water inlet of the front carbon filter element (110);

one end of the second waterway (102) is connected with the water inlet of the rear carbon filter element (120);

One end of the third waterway (103) is connected with the water outlet of the rear carbon filter element (120), and the other end of the third waterway (103) is connected with the water inlet of the pure water barrel (130);

The first switching valve (151) is arranged on the first waterway (101), the second switching valve (152) is arranged on the second waterway (102), the third switching valve (153) is arranged on the third waterway (103), the flushing pipeline comprises a first branch pipeline (104) and a second branch pipeline (105), one end of the first branch pipeline (104) is connected with a water outlet of the hot water generating device (140), the other end of the first branch pipeline (104) is connected with one valve port of the third switching valve (153), and two ends of the second branch pipeline (105) are respectively connected with one valve port of the second switching valve (152) and one valve port of the first switching valve (151).

5. The water purification device according to any one of claims 1 to 4, wherein the water purification device (100) further comprises a non-refractory filter element (160), the non-refractory filter element (160) being connected in series on the water line and located between the pre-char filter element (110) and the post-char filter element (120), a water inlet valve (154) being provided on the water line between the pre-char filter element (110) and the non-refractory filter element (160), the water inlet valve (154) being selectively openable or closable.

6. The water purification apparatus according to claim 5, wherein the water purification apparatus (100) further comprises a wastewater outlet line (106), and the pre-char filter element (110) and the non-refractory filter element (160) are provided with wastewater outlets, respectively, which are connected to the wastewater outlet line (106).

7. The water purification apparatus according to any one of claims 1 to 4, wherein the hot water generation apparatus comprises:

the hot tank is provided with a pure water inlet and a hot water outlet, the pure water inlet is connected with the water outlet of the pure water cylinder (130), and the hot water outlet is connected with the flushing pipeline; or (b)

And the heating device is suitable for heating the pure water cylinder (130) so that hot water enters the flushing pipeline from the water outlet of the pure water cylinder (130).