Disclosure of Invention
The invention aims to provide a water purifier which has various water outlet temperatures, ensures the water outlet flow and improves the heat utilization efficiency.
The purpose of the invention is realized by the following technical scheme:
a water purifier, comprising:
a filter element assembly;
the water outlet structure is used for outputting the pure water filtered by the filter element assembly;
the water tank is communicated with the pure water outlet of the filter element assembly and is used for temporarily storing the pure water filtered by the filter element assembly;
the delivery pump comprises a water inlet end and a water outlet end, and the water inlet end is communicated with the water tank;
the hot liner is communicated with the water outlet end of the delivery pump and comprises a heating element for heating pure water; and
the heat exchange pipeline is connected with the hot liner through a pipeline, is arranged in the water tank and is at least partially submerged in the pure water in the water tank; when the water purifier is horizontally placed, the heat exchange pipeline is arranged higher than the heat liner, and the water outlet structure is arranged higher than the heat exchange pipeline;
the water purifier at least comprises a first hot water mode and a second hot water mode, and in the first hot water mode, pure water sequentially passes through the water tank, the hot liner, the heat exchange pipeline and the water outlet structure and is discharged to the outside; in the second hot water mode, pure water sequentially passes through the water tank, the hot liner and the water outlet structure and is discharged to the outside;
the water outlet temperature of the first hot water mode is lower than that of the second hot water mode.
In one embodiment, the heat exchange pipeline comprises a first state communicated with the hot liner and a second state disconnected with the hot liner, and when the heat exchange pipeline is in the first state, the water purifier is in the first hot water mode; when the heat exchange pipeline is in the second state, the water purifier is in the second hot water mode.
In one embodiment, the water purifier further comprises a reversing valve arranged between the heat exchange pipeline and the hot liner, and the reversing valve is used for switching the first state and the second state of the heat exchange pipeline so as to adjust the water purifier to be in the first hot water mode or the second hot water mode.
In one embodiment, the reversing valve is an electric control valve, and the water outlet structure comprises an operation key for controlling the reversing valve.
In one embodiment, the steam heating device further comprises a steam return pipeline, one end of the steam return pipeline is communicated with the upper part of the hot liner, the other end of the steam return pipeline is communicated with the upper part of the water tank, and a safety valve for opening and cutting off the steam return pipeline is further arranged on the steam return pipeline;
the water purifier also comprises a control panel, wherein the control panel is used for controlling the safety valve to be opened and closed, and after the water outlet structure stops outputting hot water for a preset time, the control panel controls the safety valve to be opened so as to enable the hot liner to be communicated with the water tank through the steam return pipeline, and therefore water in the water outlet structure can flow back to the hot liner by means of the gravity of the water outlet structure.
In one embodiment, the filter element assembly comprises a reverse osmosis filter element, and the water purifier further comprises a booster pump arranged at the front end of the reverse osmosis filter element;
the water purifier also comprises a control board for controlling the booster pump and the delivery pump, and the control board regulates the water level in the water tank by controlling the operation of the booster pump and the delivery pump.
In one embodiment, the first hot water mode further includes a plurality of outlet temperature gears, the control board prestores water levels of the water tanks corresponding to the different outlet temperature gears, and the control board controls the operation of the booster pump and the delivery pump according to the selected outlet temperature gear to adjust the water tanks to the matched water level of the water tanks.
In one embodiment, the water tank comprises a liquid level monitoring device, and the control board controls the operation of the booster pump and the delivery pump according to monitoring signals of the liquid level monitoring device.
In one embodiment, the water outlet end of the delivery pump is in one-way communication with the water inlet end of the booster pump through a one-way pipeline, and pure water output by the delivery pump can flow back to the water inlet end of the booster pump through the one-way pipeline when the booster pump stops operating.
In one embodiment, the water purifier further comprises a cold water outlet pipeline connected between the pure water outlet of the filter element assembly and the water outlet structure, and a switch valve arranged on the cold water outlet pipeline, wherein one end of the cold water outlet pipeline is communicated with the pure water outlet of the filter element assembly, and the other end of the cold water outlet pipeline is communicated with the water outlet structure.
Compared with the prior art, the invention has the following beneficial effects: the application provides a water purifier, through setting up the water tank that is used for saving the pure water, a heat exchange pipeline in the water tank for the hot courage of pure water heating and with the setting of hot courage intercommunication, through corresponding tube coupling, make the water purifier include the first hot water mode of water route through hot courage and heat exchange pipeline, and the second hot water mode that nevertheless does not pass through heat exchange pipeline through hot courage, the leaving water temperature of first hot water mode is less than the leaving water temperature of second hot water mode, not only possess multiple leaving water temperature, the water flow has still been ensured, and the effective use of energy, reduce the energy consumption of hot courage.
Further, the water purifier horizontality, the height that goes out water structure, heat exchange pipeline, hot courage reduces in proper order, stops out hot water after, ensures that hot water can flow back to hot courage under the action of gravity, solves the unsatisfied problem of requirement of first cup temperature.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indication is involved in the embodiment of the present invention, the directional indication is only used for explaining the relative positional relationship, the motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Fig. 1 is a schematic view illustrating a pipe connection of a water purifier according to an embodiment of the present invention. Referring to fig. 1, the water purifier includes a filter element assembly (23, 22), a water tank 6, a heat container 9, a heat exchange pipeline 5 and a water outlet structure 1 which are connected in sequence through pipelines.
The filter element assemblies (22, 23) are used for filtering water to prepare pure water and comprise a raw water inlet and a pure water outlet. Wherein, the raw water inlet is communicated with tap water through a water inlet valve 31, and the filtered pure water flows out from the pure water outlet. Particularly, the filter element assembly comprises a first filter element 23 and a second filter element 22, a raw water inlet is formed in the first filter element 23, and a water outlet of the first filter element 23 is communicated with a water inlet of the second filter element 22 through a pipeline. The water purifier further comprises a first control valve 33 and a booster pump 14, wherein the first control valve 33 is arranged between a water inlet of the second filter element 22 and a water outlet of the first filter element 23, the first control valve 33 is arranged at the upstream of the booster pump 14, the booster pump 14 is used for pressurizing water filtered by the first filter element 23 and then introducing the water into the second filter element 22 so as to ensure the water pressure of the second filter element 22, and the first control valve 33 is used for controlling the on-off of a corresponding water path. The second filter element 22 comprises a concentrated water outlet which is communicated with a concentrated water pipeline, and a concentrated water valve 37 is further arranged on the concentrated water pipeline and used for controlling the discharge of concentrated water. Specifically, the second filter element 22 is a reverse osmosis filter element.
The water outlet structure 1 is communicated with a pure water outlet of the filter element assembly and is used for outputting the pure water filtered by the filter element assembly (23, 22). Specifically, the water outlet structure 1 is a water outlet faucet. The water outlet faucet can be an intelligent faucet or a mechanical faucet. When the water outlet faucet is an intelligent faucet, the water outlet faucet further comprises a control panel, and an operation key is arranged on the control panel and used for controlling whether the water outlet faucet outputs water or not and the temperature of the water outlet. The operation key may be a mechanical key or a touch key. When the water outlet faucet is a mechanical faucet, the water outlet faucet further comprises an operating handle, the operating handle is provided with a closing position and a plurality of different opening positions, and different opening positions can correspond to different water outlet temperatures.
The water tank 6 is communicated with a pure water outlet of the filter element assembly and is used for temporarily storing the pure water filtered by the filter element assembly. The water purifier further comprises a transfer pump 12 disposed between the water tank 6 and the hot tub 9. The delivery pump 12 comprises a water inlet end and a water outlet end, a water outlet is formed in the bottom of the water tank 6, the water outlet is communicated with the water inlet end of the delivery pump 12 through a pipeline, the water outlet end of the delivery pump 12 is communicated with the hot container 9, the delivery pump 12 is used for pumping pure water in the water tank 6 and conveying the pure water into the hot container 9, and water in the hot container 9 is further extruded out of the water outlet structure 1. Wherein, the hot container 9 includes a heating member 91 for heating pure water, and the pure water can be heated and heated in the hot container 9. A check valve 51 is further provided between the feed pump 12 and the hot water tank 9 to prevent the hot water in the hot water tank 9 from flowing back along the path of the feed water by the feed pump 12.
The heat exchange pipeline 5 is connected with the water outlet of the hot liner 9 through a pipeline, the water outlet of the heat exchange pipeline 5 is communicated with the water outlet structure 1, and pure water flowing out of the hot liner 9 can be cooled through the heat exchange pipeline 5 and finally flows out of the water outlet structure 1. Wherein the heat exchange line 5 is arranged in the water tank 6 at least partly submerged in the pure water of the water tank 6 for heat exchange with the cold water in the water tank 6 when hot water flows through the heat exchange line 5. On one hand, the hot water in the heat exchange pipeline 5 can be cooled, and the cooled warm water is output; on the other hand, cold water in the water tank 6 can be preheated and preheated before entering the hot tank 9, so that energy consumption of the hot tank 9 can be saved.
When the water purifier is installed, the water purifier is generally in a horizontal state. In this embodiment, when the water purifier is placed horizontally, the heat exchange pipeline 5 is arranged higher than the heat liner 9, and the water outlet structure 1 is arranged higher than the heat exchange pipeline 5. So, go out water structure 1, heat exchange pipeline 5, hot courage 9 highly reduce in proper order, after stopping out hot water, guarantee that the water in the pipeline between water structure 1 to the hot courage 9 can flow back to hot courage 9 under the action of gravity, do not store water in the pipeline between water structure 1 to the hot courage 9, solve the problem that first cup temperature does not satisfy the temperature requirement. Specifically, after the water purifier stops discharging hot water, the hot liner 9 stops heating, the delivery pump 12 stops pumping, water in a pipeline between the hot liner 9 and the water discharging structure 1 flows back to the hot liner 9 under the action of gravity, and when the water purifier needs to be started next time and hot water is required to be taken, pure water is conveyed outwards from the hot liner 9, so that the outlet water temperature of the first cup of water can be guaranteed to meet the requirement.
In this embodiment, the pure water flows out to water outlet structure 1 from the pure water outlet of filter element group spare, including many different circulation routes, it is different to correspond different circulation route water temperature. Referring to fig. 1, the water purifier includes a first hot water mode and a second hot water mode, in the first hot water mode, pure water is discharged to the outside through a water tank 6, a hot water container 9, a heat exchange pipeline 5 and a water outlet structure 1 in sequence, and high-temperature water heated by the hot water container 9 is cooled while flowing through the heat exchange pipeline 5, and warm water with lower temperature is discharged. In the second hot water mode, the pure water is discharged to the outside through the water tank 6, the hot liner 9 and the water outlet structure 1 in sequence, the high-temperature water in the hot liner 9 is directly discharged from the water outlet structure 1 without being cooled, and the outlet water temperature is higher at the moment. That is, the outlet water temperature of the first hot water mode is lower than the outlet water temperature of the second hot water mode.
The water purifier that this embodiment provided, be used for saving the water tank of pure water through the setting, be used for the hot courage to the pure water heating and with hot courage intercommunication and set up the heat exchange pipeline in the water tank, through corresponding tube coupling, make the water purifier have a first hot water mode of water route through hot courage and heat exchange pipeline, and the second hot water mode that does not pass through heat exchange pipeline through hot courage, the leaving water temperature of first hot water mode is less than the leaving water temperature of second hot water mode, not only possess multiple leaving water temperature, the water flow has still been ensured, and the effective use of energy, reduce the energy consumption. Further, through being higher than the heat exchange pipeline with a water structure, the heat exchange pipeline is higher than the setting of hot courage, stops out hot water after, ensures that hot water can flow back to hot courage under the action of gravity, goes out not water storage in the water pipe between water structure to the hot courage, solves the unsatisfied problem of requirement of first cup temperature.
In a particular embodiment, the heat exchange circuit 5 comprises a first condition of communication with the thermal bladder 9 and a second condition of disconnection from the thermal bladder 9. When the heat exchange pipeline 5 is in the first state, the water purifier is correspondingly in the first hot water mode, and when the heat exchange pipeline 5 is in the second state, the water purifier is correspondingly in the second hot water mode. Specifically, a reversing valve 30 is arranged on a pipeline connecting the heat exchange pipeline 5 and the hot water container 9, the reversing valve 30 comprises an inlet end, a first outlet end and a second outlet end, wherein the first outlet end is sequentially communicated with the heat exchange pipeline 5 and the water outlet structure 1, the second outlet end is directly communicated with the water outlet structure 1 through a pipeline, the reversing valve 30 can be controlled to switch the inlet end to be communicated with the first outlet end or the second outlet end, when the reversing valve 30 is communicated with the inlet end and the first outlet end, the heat exchange pipeline 5 is communicated with the hot water container 9, the water purifier is in a first hot water mode, and when the reversing valve 30 is communicated with the inlet end and the second outlet end, the water purifier is in a second hot water mode. According to the above embodiment, the water outlet structure 1 includes the operation key, the reversing valve 30 is specifically an electronic control valve, and the operation key can be used to control the conducting state of the reversing valve 30, so that the water purifier can be in the first hot water mode or the second hot water mode by directly operating the water outlet structure, and hot water with corresponding temperature can be directly discharged.
Further, the water purifier includes a steam return line 8 for returning the steam in the hot tub 9 to the water tank 6. One end of the steam return pipeline 8 is communicated with the upper part of the hot liner 9, and the other end is communicated with the upper part of the water tank 6. When hot courage 9 heats, the high temperature steam in the hot courage 9 can flow back to water tank 6 through steam return line 8, and water tank 6, hot courage 9, steam return line, delivery pump 12 form a closed loop, can avoid the blasting risk that high temperature steam gathers and leads to in the hot courage 9, and the backward flow steam also has the supply and preheats the effect to the cold water of water tank 6. Furthermore, in order to shorten the heating time of the hot liner 9 in the initial heating stage, the safety valve 3 for opening and cutting off the steam return pipeline 8 is further arranged on the steam return pipeline 8, in the initial heating stage, the safety valve 3 is closed, the hot liner 9 is in the closed heating stage, heat is accumulated in the hot liner 9, the water temperature can be quickly heated to a set temperature, the pressure in the hot liner 9 exceeds a safety range, the safety valve 3 can be opened, the hot liner 9 and the water tank 6 are communicated, high-pressure steam in the hot liner 9 is released, and the explosion risk of the hot liner 9 is reduced. The safety valve 3 can be a damping valve, when the difference value between the pressure of the safety valve 3 close to the hot liner 9 and the pressure of the safety valve close to the water tank 6 exceeds a preset threshold value, the safety valve 3 is automatically opened, so that the steam return pipeline 8 is communicated, the upper space of the hot liner 9 and the upper space of the water tank 6 are communicated, the pressure in the hot liner 9 is released to the water tank 6, and the pressure in the hot liner 9 is reduced. In this embodiment, two ends of the steam return line 8 are respectively communicated with the top of the hot tank 9 and the top of the water tank 6.
In another embodiment, the safety valve 3 may be an electric control valve, and the water purifier further includes a control board for electrically controlling the on/off of the safety valve 3. After the water outlet structure 1 stops discharging hot water for a preset time, the control panel controls the safety valve 3 to be opened so that the hot liner 9 is communicated with the water tank 6 through the steam return pipeline 8, and therefore the air pressure in the hot liner 9 is released quickly. Further, the water purifier can automatically control the reversing valve 30 to be communicated with the second outlet end, the water outlet structure 1 is communicated with the hot liner 9, and water in a pipeline between the water outlet structure 1 and the hot liner 9 can flow back to the hot liner 9 by means of self gravity. The water in the pipeline between the hot liner 9 and the water outlet structure 1 can be enabled to completely flow back to the hot liner 9, and the problem that the temperature of the first cup of hot water taken at certain intervals can not meet the requirement due to the fact that the water in the water outlet structure 1 cannot completely flow back to the hot liner 9 can be solved. The on-off of the safety valve 3 is controlled through the control panel, water in the water purifier which stops discharging hot water within the preset time is totally returned to the hot container 9 from the hot container 9 to the water discharging structure 1, and the requirement for water temperature can be met by a first cup of hot water which is taken after the preset time is guaranteed.
The control board is also used to control the operations of the booster pump 14 and the transfer pump 12, and the water level in the water tank 6 can be adjusted by controlling the operations of the booster pump 14 and the transfer pump 12. It will be appreciated that the depth to which the heat exchange line 5 is immersed in the cold water determines the amount of heat exchange and thus the outlet water temperature, in order to provide a greater choice of outlet water temperature. Further, the first hot water mode further comprises a plurality of outlet water temperature gears, the control board prestores the water levels of the water tanks 6 corresponding to the different outlet water temperature gears, that is, the different water tank water levels basically determine the water temperatures output by the heat exchange pipeline 5, and the control board controls the operation of the booster pumps 14 and the delivery pumps 12 according to the selected outlet water temperature gears to adjust the water tanks 6 to the water levels matched with the water tanks.
The water tank 6 comprises a liquid level monitoring device (61, 62) which is used for monitoring the water level in the water tank 6, the liquid level monitoring device is electrically connected with a control panel, and the control panel controls the operation of the booster pump 14 and the delivery pump 12 according to a liquid level signal monitored by the liquid level monitoring device. The liquid level monitoring device may include a plurality of devices for monitoring various water levels in the water tank 6, and the water level in the water tank 6 is known from signals of the sensing water environment of different liquid level monitoring devices. A plurality of different liquid level monitoring devices are correspondingly arranged according to the outlet water temperature gears, and the accurate liquid level of the water tank is obtained. For example, referring to fig. 1, the liquid level monitoring device includes an upper limit liquid level monitoring device 61 and a lower limit liquid level monitoring device 62, when the upper limit liquid level monitoring device 61 monitors the liquid level, the control board judges that the liquid level in the water tank 6 is at a high level according to the monitoring signal of the upper limit liquid level monitoring device 61, the operation of the booster pump 14 can be temporarily stopped, the pure water is stopped, and when the control board receives the monitoring signal of the lower limit liquid level monitoring device 62, the control board controls the operation of the booster pump 14 to supplement water into the water tank 6. The liquid level monitoring device may further include a centering liquid level monitoring device (not shown) disposed between the upper limit liquid level monitoring device 61 and the lower limit liquid level monitoring device 62, so that a more accurate water level can be acquired.
Because the second filter element 22 is a reverse osmosis filter element, the cost is high, and the problem of concentration polarization of a reverse osmosis filter membrane is solved in order to prolong the service life of the second filter element 22. In an embodiment, the water outlet end of the delivery pump 12 is in one-way communication with the water inlet end of the booster pump 14 through the one-way pipeline 7, and when the booster pump 14 stops operating, pure water output by the delivery pump 12 can flow back to the water inlet end of the booster pump 14 through the one-way pipeline 7, so that the water inlet of the second filter element 22 is communicated with the water tank 6, and after the shutdown, the delivery pump 12 delivers the pure water to the second filter element 22 to flush the reverse osmosis membrane of the second filter element 22, thereby solving the problem of taking a high temperature of the first cup of water TDS (Total dissolved solids, abbreviated as TDS, chinese short for Total dissolved solids) after the long-time shutdown. Specifically, the one-way pipeline 7 comprises a second control valve 34 and a one-way valve 53 which are arranged on the one-way pipeline, the one-way valve 53 is used for controlling the water flow to be communicated to the water inlet end of the booster pump 14 in a one-way mode only by the delivery pump 12, and the second control valve 34 is used for controlling the on-off of the one-way pipeline 7. The second control valve 34 is also an electrically controlled valve, which is controlled to open and close by the control panel.
In an embodiment, the pure water flows out from the pure water outlet and finally reaches the water outlet structure 1, and the water purifier further comprises a cold water outlet path, and the corresponding water purifier is in a cold water outlet mode. Specifically, the water outlet structure 1 is directly communicated with the pure water outlet through a cold water outlet pipeline, so that cold water is directly output. The cold water outlet pipeline is provided with a switch valve 36, one end of the cold water outlet pipeline is communicated with the pure water outlet of the filter element component, and the other end of the cold water outlet pipeline is communicated with the water outlet structure 1. Specifically, the switch valve 36 is an electric control valve, in an embodiment that the water outlet structure 1 is an intelligent faucet, an operation button electrically connected to the switch valve 36 is disposed on a control panel of the water outlet structure 1, and a user can open and close the switch valve 36 by operating the operation button of the water outlet structure 1, so as to select to open the cold water outlet pipeline or cut off the cold water outlet pipeline, and therefore, the water outlet structure 1 can control cold water to be discharged through the water outlet structure 1.
And a third control valve 35 is also arranged on a connecting pipeline between the water tank 6 and the pure water outlet and used for controlling the on-off of the water tank 6 and the filter element assembly.
The application provides a water purifier has multiple leaving water temperature and can choose, under the hot water mode, ensures great leaving water flow, ensures first cup hot water temperature simultaneously and satisfies the demands.
The above is only one embodiment of the present invention, and any other modifications based on the concept of the present invention are considered as the protection scope of the present invention.