CN107096285B - Water heater with automatic filter element cleaning function and control method - Google Patents
Water heater with automatic filter element cleaning function and control method Download PDFInfo
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- CN107096285B CN107096285B CN201610097386.1A CN201610097386A CN107096285B CN 107096285 B CN107096285 B CN 107096285B CN 201610097386 A CN201610097386 A CN 201610097386A CN 107096285 B CN107096285 B CN 107096285B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 351
- 238000004140 cleaning Methods 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000011001 backwashing Methods 0.000 claims abstract description 31
- 239000010865 sewage Substances 0.000 claims description 26
- 238000001514 detection method Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 238000000746 purification Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000012535 impurity Substances 0.000 description 14
- 230000006870 function Effects 0.000 description 12
- 238000001914 filtration Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
- B01D35/143—Filter condition indicators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/08—Regeneration of the filter
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a water heater with a filter element automatic cleaning function and a control method, the water heater comprises a water heater body, a controller and a water inlet pipe, wherein a filter element is arranged on the water inlet pipe, the water inlet pipe is a water inlet section at one side of a water inlet of the filter element, a water outlet section is at one side of a water outlet of the filter element, a pressure sensor and a flow sensor which are connected with the controller are arranged on the water inlet section and the water outlet section, a backwashing pipe is also arranged between the water inlet section and the water outlet section, two ends of the backwashing pipe are respectively communicated with the water inlet section and the water outlet section through a water inlet section three-way valve and a water outlet section three-way valve, a drain outlet is arranged on the filter element or is arranged between the water. The invention overcomes the defect that the filter element of the existing water heater can not be automatically cleaned, can automatically judge the use condition of the filter element for cleaning, and sends out the prompt of replacing the filter element when the filter element can not be effectively cleaned. The water purification effect is improved and the service life of the filter element is prolonged.
Description
Technical Field
The invention relates to the field of water heaters, in particular to a water heater with a filter element automatic cleaning function and a control method.
Background
The water storage type electric water heater has the defects that the service life of the water heater is influenced and the health of a user is damaged due to silt, impurities and the like contained in water. In order to purify water quality, a filter element is generally additionally arranged at the front end of a water inlet of a water heater for filtering. However, a large amount of suspended particles and impurities are accumulated after the filter element filters for a period of time, and the purification effect is reduced. The silted impurities on the surface of the filter element can not be easily cleaned after a long time, and bacteria are easily bred, so that the water quality and the health of a user are influenced. And too much impurities deposited on the filter element can also influence the smoothness of water inlet and the water blowing effect during bathing.
The existing water storage type electric water heater with a front device for filtering silt, impurities and the like is generally provided with a filtering device at the front end of the water heater, tap water enters an inner container after being filtered, but the judgment on the use condition of a filter element is basically carried out by judging whether the filter element needs to be cleaned and replaced through the use time or artificial perception, and the cleaning generally needs more complicated engineering. Some water heaters judge the service condition of the filter element through the filtering flow or the filtering time, but the filter element can not accurately reflect the working state of the filter element by completely adopting the flow and the time to judge aiming at different water quality conditions.
Because the user is not professional, often can not discover the in service behavior of filter core in time, and often the very serious that impurity silted up when discovering, just this moment just can only manual dismantlement filter core wash to the cleaning performance is also not big. The filter life is therefore greatly compromised.
The present invention has been made in view of the above circumstances. The automatic cleaning device can automatically judge the use condition of the filter element, automatically clean the filter element as required according to the use condition of the filter element, and ensure the working effect of the filter element. Simultaneously, the filter element can not be effectively cleaned, and the user is prompted to replace the filter element.
Disclosure of Invention
The invention mainly solves the problems that the existing water heater can not accurately detect and judge the use condition of the filter element and can not automatically clean according to the use condition of the filter element. The invention can automatically monitor the use condition of the filter element according to the pressure and flow conversion condition of the front end and the rear end of the filter element, can automatically start the cleaning function of the filter element when the filter element needs to be cleaned when the water pressure and the water flow at the rear end of the filter element are obviously reduced, introduces the water flow into the filter element by controlling the three-way valve and the drain valve on the water inlet pipeline, washes the filter element, and restores the normal filtering function after washing.
The utility model provides a water heater with filter core self-cleaning function, includes the water heater body, the controller, the inlet tube, be provided with the filter core on the water heater inlet tube, the inlet tube is intake the section in filter core water inlet one side, is out the water section in filter core delivery port one side, its characterized in that, intake all be provided with on section and the play water section with pressure sensor and the flow sensor that the controller is connected, it still includes a backwash pipe to intake between section and the play water section, backwash pipe both ends are respectively through intake section three-way valve and play water section three-way valve and intake section and play water section intercommunication, be provided with the drain on the filter core, or the section of intaking is located the part between intake section three-way valve and the filter core water inlet and is provided with the drain, be equipped. Furthermore, the water inlet section three-way valve and the water outlet section three-way valve are electric three-way valves, and the sewage discharge valve is an electric valve.
Further, the controller comprises a CPU, and a reminding module and a cleaning module which are connected with the CPU, the pressure sensor and the flow sensor are connected with the CPU, and the water inlet section three-way valve, the water outlet section three-way valve and the blow-down valve are respectively connected with the cleaning module.
Furthermore, the controller also comprises a timing module for recording the running time of the cleaning module, and the timing module is connected with the CPU.
Further, the controller further comprises a display module for displaying the working state of the controller, and the display module is connected with the CPU.
Furthermore, the pressure sensor and the water flow sensor are arranged on the water inlet section and the water outlet section and are positioned on the parts, which are positioned between the three-way valve and the filter element, of the water inlet section and the water outlet section.
Furthermore, a drain outlet on the filter element is arranged on one side of the filter element close to the water inlet section.
A control method of a water heater with a filter element automatic cleaning function is characterized in that water pressure and water flow of a water inlet section and water pressure and water flow of a water outlet section are respectively detected, when the difference value between the water pressure V1 of the water inlet section and the water pressure V2 of the water outlet section is larger than a set value VX, and the difference value between the water flow Q1 of the water inlet section and the water flow Q2 of the water outlet section is larger than a set value QX, a cleaning prompt is sent, and a water path of a backwashing pipe is opened for backwashing; and after backwashing is finished, detecting the water pressure difference value and the water flow difference value of the water inlet section and the water outlet section again, stopping cleaning reminding if the difference values are smaller than set values VX and QX, and sending out filter element replacement reminding if the difference values are still larger than the set values.
Further, the method comprises the following specific steps:
s1, detecting water pressure V1 and water flow Q1 of a water inlet section, and detecting water pressure V2 and water flow Q2 of the water section;
s2, calculating a difference value between V1 and V2 and a difference value between Q1 and Q2, if V1-V2 are not less than a set pressure difference VX and Q1-Q2 are not less than a set flow difference QX, executing S3, otherwise returning to S1;
s3, sending a cleaning prompt, controlling the water inlet section three-way valve, the water outlet section three-way valve and the sewage disposal valve to open a backwashing water path, enabling inlet water to flow into the water outlet of the filter element through the water inlet section, the backwashing pipe and the water outlet section, then flowing out through the sewage disposal port, and starting timing at the same time, wherein the time is T0;
s4, timing to T1, finishing cleaning reminding, and controlling the water inlet section three-way valve, the water outlet section three-way valve and the drain valve to close the backwashing water channel, so that inlet water flows into the water heater through the water inlet section, the filter element and the water outlet section;
s5, detecting water pressure V1 and water flow Q1 of a water inlet section, and detecting water pressure V2 and water flow Q2 of the water section;
s6, calculating a difference value between V1 and V2 and a difference value between Q1 and Q2, if V1-V2 are not less than a set pressure difference VX and Q1-Q2 are not less than a set flow difference QX, executing S7, otherwise returning to S1;
and S7 sending out a filter element replacement prompt.
Further, the set values VX and QX are set by a user or automatically set by the water heater detecting water inflow.
Further, the VX is set to be V1/2, the QX is Q1/2, and the T1 is greater than 15 minutes.
After the technical scheme is adopted, when the filter element needs to be cleaned, the filter element does not need to be detached, the flushing function is started, water flow is controlled through the valve and the pipeline, the filter element is flushed, impurities in the filter element are removed, and the normal function of the filter element is recovered after the flushing is finished. The filter element impurity siltation is avoided too much, and the water purification effect and the health of the user are influenced.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention
FIG. 2 is a schematic diagram of an embodiment of the present invention
FIG. 3 is a schematic diagram of a preferred embodiment of the present invention
FIG. 4 is a schematic diagram of a controller according to an embodiment of the present invention
FIG. 5 is a flow chart of a control method of a water heater with a filter element automatic cleaning function according to the present invention
The water heater comprises a water heater body 1, a water inlet pipe 2, a water inlet section 21, a water outlet section 22, a filter element 3, a water inlet section pressure sensor 41, a water outlet section pressure sensor 42, a water inlet section flow sensor 51, a water outlet section flow sensor 52, a backwashing pipe 6, a water inlet section three-way valve 71, a water outlet section three-way valve 72, a sewage draining outlet 8, a sewage draining valve 81, a controller 9, a CPU91, a reminding module 92, a cleaning module 93, a timing module 94, a display module 95, an inlet pipe 10 and an outlet pipe 11.
Detailed Description
The filter element is additionally arranged on the water inlet pipeline of the existing water heater for the health of a user and prolonging the service life of the inner container so as to purify water quality. But after long-term use, a large amount of silt, particulate matters, water rust and the like are accumulated on the surface of the filter element to pollute the filter element, and the pollutants can influence the smoothness of water flow, reduce the filtering effect of the filter element, and simultaneously can breed bacteria and harm the health of a user. Therefore, the use condition of the filter element needs to be known in time and the filter element needs to be cleaned or replaced. The existing water heater usually judges whether the filter element needs to be cleaned and replaced through using time or human perception. The service condition of the filter element is judged according to the filtering flow or the filtering time of some existing water heaters, but the service condition of the filter element is judged according to different water quality conditions by completely adopting the flow and the time, and the working state of the filter element cannot be accurately reflected. In addition, because the cleaning generally needs more complicated engineering, most users directly replace the filter element instead of cleaning when finding that the effect of the filter element is reduced. This actually causes waste and an increase in use cost. There is a need for a water heater that can not only timely and accurately determine the usage of the filter element, but also automatically clean the filter element, and prompt the user to replace the filter element when the filter element cannot be thoroughly cleaned.
The filter element is judged according to two items of information of water pressure and water flow, and whether the filter element needs to be cleaned is determined only when the numerical values of the water pressure and the water flow meet the judgment standard, so that the judgment is more accurate. The water inlet pipeline of the existing water heater is a water channel flowing through the filter element, impurities in water can be deposited on one side of water inlet, and if water flow can flow reversely, deposited impurities on the water inlet side can be washed. Therefore, the water inlet pipe of the water heater only adds one backwashing pipe on the pipeline system, thereby realizing the cleaning function and greatly reducing the complexity of disassembling the filter element and the complexity of manually cleaning the filter element. And only 2 three-way valves and one blowoff valve are used in the specific implementation process, the switching of the normal water inlet and the backwashing water channel is completed, the structure is simple, and the reliability is high.
Example one
The embodiment is a basic structure embodiment of the invention, can realize the judgment of the use condition of the filter element and realize the cleaning, but the cleaning process needs to manually control the valve, and the automation degree is not high.
As shown in fig. 1, a water heater with cleaning function is reminded to filter core, including water heater body 1, be provided with controller 9 on water heater body 1, be provided with filter core 3 on water inlet tube 2 of water heater body 1, the inlet tube is intake section 21 in filter core water inlet one side, is out water section 22 on filter core delivery port one side, it is provided with intake section pressure sensor 41 and intake section flow sensor 51 be connected with controller 9 on the section 21 to intake, it is provided with and is connected out water section pressure sensor 42 and play water section flow sensor 52 with control 9 on the play water section.
The purpose of setting up pressure and flow sensor is to detect water pressure and discharge information on the section 21 of intaking and the section 22 of exhaling, because after certain impurity accumulation of filter core, can influence the smooth and easy degree of rivers, lead to two sections front and back inlet tubes of filter core 3, that is to say section 21 of intaking and the section 22 of exhaling produce pressure differential and flow difference. When the pressure difference and the flow difference reach set values, the impurities on the filter element need to be cleaned.
Further, the water inlet section pressure sensor 41, the water inlet section flow sensor 51, the water outlet section pressure sensor 42 and the water outlet section flow sensor 52 are all connected to a controller 9, the controller 9 receives the sensor signals and calculates the pressure difference and the flow difference, and when the pressure difference and the flow difference between the water inlet section 21 and the water outlet section 22 reach set values, the CPU91 of the controller 9 sends out a cleaning prompt through the prompt module 92.
Further, the cleaning function is realized by arranging a backwashing pipe 6, two end parts of the backwashing pipe 6 are respectively communicated with the water inlet section 21 and the water outlet section 22 through connecting pieces, and the connecting pieces are three-way valves. The three-way valve connected with the backwash pipe and the water inlet section is a water inlet section three-way valve 71, and the three-way valve connected with the backwash pipe and the water outlet section is a water outlet section three-way valve 72. For clarity, the inlet pipe 10 is disposed between the three-way valve 71 and the filter element 3, and the outlet pipe 11 is disposed between the three-way valve 72 and the filter element 3. The three ports on the water inlet section three-way valve 71 are respectively a port A, a port B and a port C, wherein the port A is connected with the water inlet section 21, the port B is connected with the backwashing pipe 6, and the port C is connected with the inlet pipe 10. The three ports on the water outlet section three-way valve 72 are respectively a port D, a port E and a port F, wherein the port D is connected with the outlet pipe 10, the port E is connected with the backwashing pipe 6, and the port F is connected with the water outlet section 22.
Further, in order to ensure the outflow of the cleaned sewage, a sewage draining outlet 8 needs to be arranged, and the sewage draining outlet 8 can be arranged on the shell of the filter element 3 and also can be arranged on the inlet pipe 10. When the sewage draining outlet 8 is arranged on the shell of the filter element 3, the sewage draining outlet 8 is arranged on the side close to the water inlet of the filter element in consideration of the fact that impurities are easier to deposit on the side close to the water inlet of the filter element; if the filter element is arranged on one side close to the water outlet of the filter element, water flow just enters the filter element and flows out of the sewage draining outlet when the filter element is cleaned, and the filter element cannot be cleaned effectively. Therefore, when the sewage draining outlet is arranged on the shell of the filter element 3, the sewage draining outlet is arranged at one side close to the water inlet of the filter element.
Further, the sewage draining outlet can be arranged on the inlet pipe 10, when the sewage draining outlet is arranged on the inlet pipe 10, water flow during cleaning can flow through the whole filter element, the cleaning effect is best, and therefore the sewage draining outlet is preferably arranged on the inlet pipe 10 in the embodiment.
Further, in order to ensure that the water heater can normally feed water during normal operation, the drain valve 81 is required to be arranged at the drain outlet, and after the cleaning is finished, the drain valve 81 is closed to ensure that the water can normally flow into the water heater.
Further, when the water heater is normally used, the port B of the water inlet section three-way valve 71 is closed, and the ports A and C are opened; the port E of the water outlet section three-way valve 72 is closed, and the ports D and F are opened; at this time, the inlet water flows into the water heater 1 through the water inlet section 21, the filter element 3 and the water outlet section 22.
Further, when the filter element is cleaned, the port C of the water inlet section three-way valve 71 is closed, and the ports A and B are opened; the port F of the water outlet section three-way valve 72 is closed, and the ports D and E are opened; at the moment, the inlet water flows out of the sewage outlet 8 through the water inlet section 21, the backwashing pipe 6, the outlet pipe 11, the filter element 3, the inlet pipe 10 and the sewage outlet 8.
Further, considering that water containing a large amount of impurities flows through the inlet pipe 10 and the outlet pipe 11 during cleaning, in order to prevent damage to the sensors, to extend the life of the sensors, and to prevent the pressure sensors and the water flow rate sensors from being disposed on the inlet pipe 10 and the outlet pipe 11. The pressure sensor and the water flow rate sensor are preferably provided on portions other than the inlet pipe 10 and the outlet pipe 11.
Example two
The embodiment is optimized on the basis of the embodiment, the pipeline arrangement and the valve position are not changed, only the three-way valve and the blowoff valve are electrically operated valves and connected with the controller, the controller is additionally provided with a cleaning module and the like, and the detection and the cleaning can be completed automatically.
As shown in fig. 2, since the pipeline structure and the valve position are the same as those of the first embodiment, the description of the same parts is omitted. Only the connection relationship between the electric water inlet section three-way valve 71, the electric water outlet section three-way valve 72 and the blowoff valve 81 and the controller 9, and the module structure of the controller 9 will be described.
Specifically, as shown in fig. 4, the controller 9 includes a reminder module 92 and a washing module 93 coupled to the CPU 91. The water inlet section three-way valve 71, the water outlet section three-way valve 72 and the blow-down valve 81 are connected with a cleaning module 92 in the controller 9. When the pressure difference and the flow difference calculated by the controller 9 are equal to or greater than the set values, the purge module 93 is started. The cleaning module 93 is used for electrifying the water inlet section three-way valve 71, the water outlet section three-way valve 72 and the blowdown valve 81, closing the port C of the water inlet section three-way valve 71, and opening the ports A and B; the port F of the water outlet section three-way valve 72 is closed, and the ports D and E are opened; at the moment, the inlet water flows out of the sewage outlet 8 through the water inlet section 21, the backwashing pipe 6, the outlet pipe 11, the filter element 3, the inlet pipe 10 and the sewage outlet 8.
Further, the controller 9 further comprises a timing module 94 connected to the CPU91 for recording the working time of the cleaning module 93 after being started. When the timing module reaches the time of T1, the cleaning module 93 is closed, the water inlet section three-way valve 71, the water outlet section three-way valve 72 and the blowdown valve 81 are powered off, the port B of the water inlet section three-way valve 71 is closed, and the port A and the port C are opened; the port E of the water outlet section three-way valve 72 is closed, and the ports D and F are opened; at this time, the inlet water flows into the water heater 1 through the water inlet section 21, the filter element 3 and the water outlet section 22, and the normal working state is recovered.
Further, a display module 95 is included which is connected to the CPU 91. When the cleaning is finished at the time of T1, the water pressure and water flow information of the water inlet section 21 and the water outlet section 22 are detected again, the pressure difference and the flow difference between the water inlet section 21 and the water outlet section 22 are measured and calculated, and if the pressure difference and the flow difference are still larger than or equal to the set values, a filter element replacement prompt is displayed on the display module 95.
EXAMPLE III
The second embodiment is further optimized, as shown in fig. 3, the pipeline arrangement of the second embodiment is changed, and the length of the filter element occupied below the water heater is shortened. The toilet bowl is beneficial to installation, reduces the occupation of the toilet space and is convenient for users to use. This embodiment is the preferred embodiment of the present invention.
Example four:
a control method of a water heater is characterized in that water pressure and water flow of a water inlet section and a water outlet section are respectively detected, when the difference value between the water pressure V1 and the water flow Q1 of the water inlet section and the water pressure V2 and the water flow Q2 of the water outlet section is larger than set values VX and QX, a cleaning prompt is sent, and a water channel of a backwashing pipe is opened for backwashing; and after backwashing is finished, detecting the water pressure and water flow difference value of the water inlet section and the water outlet section again, stopping cleaning reminding if the difference value is less than set values VX and QX, and sending out filter element replacement reminding if the difference value is still greater than the set values.
Further, the method comprises the following specific steps:
101, detecting water pressure V1 and water flow Q1 of a water inlet section, and detecting water pressure V2 and water flow Q2 of the water section;
102 calculating the difference value of V1 and V2 and the difference value of Q1 and Q2;
103, if V1-V2 is not less than the set pressure difference VX and Q1-Q2 is not less than the set flow difference QX, executing 104, otherwise, returning to S1;
104, sending a cleaning prompt, controlling the water inlet section three-way valve, the water outlet section three-way valve and the sewage disposal valve to open a backwashing water path, enabling inlet water to flow into the water outlet of the filter element through the water inlet section, the backwashing pipe and the water outlet section, and then flow out through the sewage disposal port, and starting timing at the same time, wherein the time is T0;
105, timing to T1, finishing the cleaning reminding, and controlling the water inlet section three-way valve, the water outlet section three-way valve and the blow-down valve to close the backwashing water channel, so that the inlet water flows into the water heater through the water inlet section, the filter element and the water outlet section;
106 detecting water pressure V1 and water flow Q1 of the water inlet section, and detecting water pressure V2 and water flow Q2 of the water section;
107 calculating the difference value of V1 and V2 and the difference value of Q1 and Q2;
108 if V1-V2 is not less than the set pressure difference VX and Q1-Q2 is not less than the set flow difference QX, executing 109, otherwise returning to S1;
109 sending a filter element replacement prompt.
Furthermore, the set values VX and QX are set by a user or automatically set by the water heater detecting water inlet.
Further, the VX is set to be V1/2, the QX is Q1/2, and the T1 is set to be more than 15 minutes.
The above embodiments are merely preferred embodiments of the present invention, and the embodiments are merely descriptions of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention, and various changes and modifications of the technical solution of the present invention made by those skilled in the art without departing from the design concept of the present invention belong to the protection scope of the present invention.
Claims (10)
1. A water heater with a filter element automatic cleaning function comprises a water heater body, a controller and a water inlet pipe, wherein a filter element is arranged on the water inlet pipe, a water inlet section is arranged on one side of a water inlet of the filter element of the water inlet pipe, and a water outlet section is arranged on one side of a water outlet of the filter element of the water inlet pipe;
comparing the water pressure difference value with a pressure set value and the water flow difference value with a flow set value to judge that the filter element needs to be cleaned; after the filter element is cleaned, if the water pressure difference calculated by the controller is greater than the pressure set value and the water flow difference is greater than the flow set value, the filter element is judged to be required to be replaced;
the filter element is characterized in that a backwashing pipe is further arranged between the water inlet section and the water outlet section, two ends of the backwashing pipe are communicated with the water inlet section and the water outlet section through a water inlet section three-way valve and a water outlet section three-way valve respectively, a drain outlet is formed in the filter element, or a part of the water inlet section, which is located between the water inlet section three-way valve and the water inlet of the filter element, is provided with a drain outlet, and a drain valve is arranged on the drain outlet.
2. The water heater with the automatic filter element cleaning function according to claim 1, wherein the water inlet section three-way valve and the water outlet section three-way valve are both electric three-way valves, and the sewage valve is an electric valve.
3. The water heater with the automatic filter element cleaning function according to claim 2, wherein the controller comprises a CPU, and a reminding module and a cleaning module which are connected with the CPU, the pressure sensor and the flow sensor are connected with the CPU, and the water inlet section three-way valve, the water outlet section three-way valve and the drain valve are respectively connected with the cleaning module.
4. The water heater with automatic filter element cleaning function according to claim 3, wherein the controller further comprises a timing module for recording the running time of the cleaning module, and the timing module is connected with the CPU.
5. The water heater with the automatic filter element cleaning function according to claim 3, wherein the controller further comprises a display module for displaying and controlling the working state, and the display module is connected with the CPU.
6. The water heater with the automatic filter element cleaning function according to the claim 1, characterized in that the pressure sensor and the water flow sensor are arranged on the parts of the water inlet section and the water outlet section which are positioned outside between the three-way valve and the filter element.
7. The water heater with the filter element automatic cleaning function as claimed in claim 1, wherein a sewage draining outlet on the filter element is arranged on one side of the filter element close to the water inlet section.
8. The control method of the water heater with the automatic filter element cleaning function according to any one of claims 1 to 7, characterized in that the water pressure and the water flow of the water inlet section and the water pressure and the water flow of the water outlet section are respectively detected, when the difference between the water pressure V1 of the water inlet section and the water pressure V2 of the water outlet section is greater than a set value VX, and the difference between the water flow Q1 of the water inlet section and the water flow Q2 of the water outlet section is greater than a set value QX, a cleaning prompt is sent, and a water path of a backwashing pipe is opened for backwashing; and after backwashing is finished, detecting the water pressure difference value and the water flow difference value of the water inlet section and the water outlet section again, stopping cleaning reminding if the difference values are smaller than corresponding set values VX and QX, and sending out filter element replacement reminding if the difference values are still larger than the set values.
9. The control method of the water heater with the automatic filter element cleaning function according to the claim 6 is characterized by comprising the following specific steps:
s1, detecting water pressure V1 and water flow Q1 of a water inlet section, and detecting water pressure V2 and water flow Q2 of the water section;
s2, calculating a difference value between V1 and V2 and a difference value between Q1 and Q2, if V1-V2 are not less than a set pressure difference VX and Q1-Q2 are not less than a set flow difference QX, executing S3, otherwise returning to S1;
s3, sending a cleaning prompt, controlling the water inlet section three-way valve, the water outlet section three-way valve and the sewage disposal valve to open a backwashing water path, enabling inlet water to flow into the water outlet of the filter element through the water inlet section, the backwashing pipe and the water outlet section, then flowing out through the sewage disposal port, and starting timing at the same time, wherein the time is T0;
s4, timing to T1, finishing cleaning reminding, and controlling the water inlet section three-way valve, the water outlet section three-way valve and the drain valve to close the backwashing water channel, so that inlet water flows into the water heater through the water inlet section, the filter element and the water outlet section;
s5, detecting water pressure V1 and water flow Q1 of a water inlet section, and detecting water pressure V2 and water flow Q2 of the water section;
s6, calculating a difference value between V1 and V2 and a difference value between Q1 and Q2, if V1-V2 are not less than a set pressure difference VX and Q1-Q2 are not less than a set flow difference QX, executing S7, otherwise returning to S1;
and S7 sending out a filter element replacement prompt.
10. The method as claimed in claim 9, wherein the setting values VX, QX, and T1 are set by a user or automatically by water heater upon water intake detection, or the setting values VX of V1/2, QX of Q1/2, and T1 are set for more than 15 minutes.
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| CN110873464B (en) * | 2018-08-30 | 2022-03-25 | 芜湖美的厨卫电器制造有限公司 | Residual hot water quantity determination method and device, water heater and storage medium |
| CN109942035A (en) * | 2019-03-13 | 2019-06-28 | 佛山市云米电器科技有限公司 | A kind of Intelligent control type filtration system |
| CN111617539B (en) * | 2020-06-07 | 2021-09-03 | 南京依柯卡特排放技术股份有限公司 | Pipeline filtration water treatment reverse-flow type self-cleaning system |
| CN112850844A (en) * | 2021-01-08 | 2021-05-28 | 上海交通大学 | Intelligent self-cleaning system and method for ballast water treatment ultraviolet unit based on event driving |
| CN112766520A (en) * | 2021-01-25 | 2021-05-07 | 珠海格力电器股份有限公司 | Pre-filter, cleaning control method, device, equipment and storage medium thereof |
| CN113926245A (en) * | 2021-11-02 | 2022-01-14 | 上海熊猫机械(集团)有限公司 | Direct drinking water equipment filter element service life judging and managing method |
| CN116081717B (en) * | 2022-11-30 | 2024-07-23 | 珠海格力电器股份有限公司 | Control method, control device, electronic equipment, water purifier and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1394663A (en) * | 2001-07-10 | 2003-02-05 | 同济大学 | Water filter back-flusing automatic change-over system |
| CN202150026U (en) * | 2011-06-20 | 2012-02-22 | 煤炭科学研究总院杭州环保研究院 | A control system of a pressure-type filter adopting air and water for flushing mutually and a water processing system |
| CN103157321A (en) * | 2011-12-15 | 2013-06-19 | 中国石油天然气集团公司 | Automatic detection alarm method and device for clogging of high pressure airtight filter |
| CN103486723A (en) * | 2013-09-24 | 2014-01-01 | 芜湖美的厨卫电器制造有限公司 | Electric water heater with water purifying function and water purifying method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120074069A1 (en) * | 2010-07-19 | 2012-03-29 | Hanilton Sundstrand Corporation | Smart filter monitor |
-
2016
- 2016-02-23 CN CN201610097386.1A patent/CN107096285B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1394663A (en) * | 2001-07-10 | 2003-02-05 | 同济大学 | Water filter back-flusing automatic change-over system |
| CN202150026U (en) * | 2011-06-20 | 2012-02-22 | 煤炭科学研究总院杭州环保研究院 | A control system of a pressure-type filter adopting air and water for flushing mutually and a water processing system |
| CN103157321A (en) * | 2011-12-15 | 2013-06-19 | 中国石油天然气集团公司 | Automatic detection alarm method and device for clogging of high pressure airtight filter |
| CN103486723A (en) * | 2013-09-24 | 2014-01-01 | 芜湖美的厨卫电器制造有限公司 | Electric water heater with water purifying function and water purifying method |
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Effective date of registration: 20201116 Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee after: Qingdao Economic And Technology Development District Haier Water Heater Co.,Ltd. Patentee after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee before: Qingdao Economic And Technology Development District Haier Water Heater Co.,Ltd. |