CN113701342B - Circulating filtration type household electric water heater capable of preventing scale and working method thereof - Google Patents
Circulating filtration type household electric water heater capable of preventing scale and working method thereof Download PDFInfo
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- CN113701342B CN113701342B CN202111021087.7A CN202111021087A CN113701342B CN 113701342 B CN113701342 B CN 113701342B CN 202111021087 A CN202111021087 A CN 202111021087A CN 113701342 B CN113701342 B CN 113701342B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 369
- 238000001914 filtration Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 90
- 239000002351 wastewater Substances 0.000 claims abstract description 35
- 238000009413 insulation Methods 0.000 claims abstract description 18
- 238000004321 preservation Methods 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 7
- 239000011707 mineral Substances 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract description 2
- 239000008236 heating water Substances 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 206010037660 Pyrexia Diseases 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000009288 screen filtration Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/18—Water-storage heaters
- F24H1/185—Water-storage heaters using electric energy supply
-
- 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
- F24H9/0005—Details for water heaters
- F24H9/0042—Cleaning arrangements
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The utility model relates to a can prevent circulation filtration formula domestic electric water heater of incrustation scale, including shell, heating cabinet, insulation can, cold water tank, waste water dish, pipeline, control box, its characterized in that: the heater heats water to enable the spin device to operate, and agitates hot water in the heating box; a special filter is arranged in the pipeline and matched with the heating box for filtering scale deposit in the heating box. According to the water heater, the heater is used for heating water in the heating box, the spin device is driven to rotate, so that hot water in the heating box is stirred, mineral is not easy to precipitate to form scale, and the mineral is filtered by the special filter and discharged to the wastewater tray, so that the formation of the scale is effectively prevented, the maintenance cost is reduced, and the heating performance is improved; the heating box heats simultaneously, and the cold water tank filters, has reduced the preparation time before the work, has improved work efficiency.
Description
Technical Field
The application relates to the field of household appliances, in particular to a circulating filtration type household electric water heater capable of preventing scale and a working method thereof.
Background
CN201620952268X discloses an electric water heater with a filtering device, which has the technical scheme that: including rivers pipeline and heater, the heater sets up on the rivers pipeline, and the rivers pipeline before the heater is raw water entry segment, and the rivers pipeline behind the heater is hot water outlet section, characterized by, install the filter equipment that can be dismantled on the raw water entry segment, filter equipment carries out filtration to the water that flows through, and wherein, filter equipment softens or micro-purification's filtration to the water that flows through, and filter equipment includes PP cotton filtration or filter screen filtration, and the filter core is removable connection.
The electric water heater with the filtering device has the following advantages: the filter device is additionally arranged on the water flow pipeline so as to meet the requirements of different users on the filtering treatment of the hot water; furthermore, as the filtering device is detachably mounted, the filtering device is convenient for a user to replace and maintain, and the filtering device is easy to realize and simple and reasonable in structure; through setting up the water sensor in hot water outlet section, whether real-time supervision has hot water to flow out to with the play water sensing signal transmission who gathers gives electric control device, make action execution instruction by electric control device according to play water sensing signal, if: when hot water flows out, the safety switch of the heater cuts off the power supply at the two ends of the alternating current of the heater according to the action execution instruction; in contrast, if the outflow of hot water is not monitored, the heater safety switch is connected with the power supply of the heater again according to the action execution instruction, so that the two ends of the alternating current of the heater are in a power-on working state, the water outflow induction automatically cuts off the alternating current power supply of the heater, the use safety of a user is ensured, and the implementation is easy; the live wire connecting line and the zero wire connecting line of the live component are cut off or connected simultaneously, so that the on-off control of the two ends of the alternating current of the live component is realized, and the use safety of a user is truly ensured.
However, this electric water heater with filtering device also has the following drawbacks: after long-term use, scale is easy to generate in the water tank, the heat conduction capacity of the scale is poor, and the heating efficiency is reduced if the formed scale is too thick.
Therefore, there is a need for an electric water heater that is both scale resistant and filterable.
Disclosure of Invention
In order to solve the problem of easy scale generation, the application provides a circulating filtration type household electric water heater capable of preventing scale.
The application provides a can prevent circulation filtration formula domestic electric water heater of incrustation scale, include: shell, heating cabinet, insulation can, cold water tank, waste water dish, pipeline, control box:
the heater heats water to enable the spin device to operate, and the hot water in the heating box is stirred.
Further, spin device sets up in the middle in the heating cabinet bottom, include: the bracket is fixedly connected with the bottom of the heating box; the fan blade shaft is vertically arranged at the center of the bracket and fixedly connected with the bracket; the fan blade is sleeved on the fan blade shaft and is rotationally connected with the fan blade shaft;
the heater is arranged at the bottom of the heating box in the middle and is electrically connected with the control box.
By adopting the technical scheme, the heater heats the water in the heating box, and the spin device is driven to rotate, so that the hot water in the heating box is stirred, and mineral is not easy to precipitate to form scale.
Further, the heating cabinet sets up on shell upper portion, still includes: the first water level sensor is arranged at the upper part of the heating box and is electrically connected with the control box; the second water level sensor is arranged at the lower part of the heating box and is electrically connected with the control box; the temperature sensor is arranged in the middle of the heating box and is electrically connected with the control box.
Through adopting above-mentioned technical scheme, first water level sensor has limited the full load volume of heating cabinet, and second water level sensor can prevent the empty fever in the heating cabinet, has realized the protection to the heater.
Further, the housing includes: the sliding groove is arranged at the lower part of the shell; the pull cover is arranged at the lower part of the shell, is matched with the chute and is hinged with the shell; the water inlet joint is arranged at the lower part of the shell and is matched with the water inlet pipe; the water outlet joint is arranged at the upper part of the shell and is matched with the water outlet pipe.
Further, the insulation can sets up at the shell middle part, includes: the heat insulation layer is arranged around the inner wall of the heat insulation box, and the heat insulation layer is made of a material with poor heat conductivity; the third water level sensor is arranged at the lower part of the heat preservation box and is electrically connected with the control box.
By adopting the technical scheme, the third water level sensor can monitor whether the incubator is empty.
Further, the cold water tank is arranged at the lower part of the shell, and comprises: and the fourth water level sensor is arranged at the upper part of the cold water tank and is electrically connected with the control box.
By adopting the technical scheme, the fourth water level sensor limits whether the cold water tank is full.
Further, the waste water tray sets up in the shell lower part, with spout sliding fit includes: and the fifth water level sensor is arranged at the upper part of the wastewater disc and is electrically connected with the control box.
By adopting the technical scheme, the fifth water level sensor limits whether the wastewater tray is full.
Further, the volume of the heat preservation box is consistent with the full-load volume of the heating box.
By adopting the technical scheme, the heating box can be guaranteed to supply the heat preservation box one by one, the situation that the heating box is required to treat water due to insufficient supply is prevented, and the waiting time is shortened.
Further, the pipeline includes: the right side end of the water inlet electromagnetic valve is connected with the water inlet joint; the upper end of the first three-way joint is communicated with the bottom of the cold water tank through a water pipe, and the right side end of the first three-way joint is connected with the left side end of the water inlet electromagnetic valve through a water pipe; the left end of the first electric control reversing valve is connected with the left end of the first three-way joint through a water pipe, and the right end of the first electric control reversing valve is communicated with the bottom of the heat preservation box through a water pipe; the lower end of the second three-way joint is connected with the upper end of the first electric control reversing valve through a water pipe; the upper end of the second electric control reversing valve is communicated with the bottom of the heating box through a water pipe, the right side end of the second electric control reversing valve is communicated with the upper part of the heat preservation box through a water pipe, and the left side end of the second electric control reversing valve is connected with the side end of the second three-way joint through a water pipe; the lower end of the water pump is connected with the upper end of the second three-way joint through a water pipe; the right side end of the third electric control reversing valve is connected with the upper end of the water pump through a water pipe; the upper part of the special filter is connected with the upper end of the third electric control reversing valve through a water pipe, and the lower part of the special filter is connected with the lower end of the third electric control reversing valve through a water pipe; the upper end of the fourth electric control reversing valve is connected with the upper part of the special filter through a water pipe, and the left side end of the fourth electric control reversing valve is connected with the water outlet joint through a water pipe; the upper end of the fifth electric control reversing valve is connected with the right side end of the fourth electric control reversing valve through a water pipe, the left side end of the fifth electric control reversing valve is communicated with the upper part of the cold water tank through a water pipe, and the right side end of the fifth electric control reversing valve is communicated with the upper part of the heating tank through a water pipe; the upper end of the drainage electromagnetic valve is connected with the lower part of the special filter through a water pipe, and the lower end of the drainage electromagnetic valve is communicated with the wastewater tray through a water pipe;
the water inlet electromagnetic valve is electrically connected with the control box; the first electric control reversing valve is electrically connected with the control box; the second electric control reversing valve is electrically connected with the control box; the third electric control reversing valve is electrically connected with the control box; the fourth electric control reversing valve is electrically connected with the control box; the fifth electric control reversing valve is electrically connected with the control box; the water pump is electrically connected with the control box; the drainage solenoid valve is electrically connected with the control box.
Further, the special filter includes: a filter housing, a cartridge housing threadedly engaged with the filter housing;
the filter housing upper end opening comprises: the waste water discharge outlet is arranged at the bottom of the filter shell and is connected with the drainage electromagnetic valve through a water pipe; the filter inlet is arranged at the lower part of the side wall of the filter shell and is connected with the lower end of the third electric control reversing valve through a water pipe; the filter outlet is arranged at the upper part of the side wall of the filter shell and is connected with the upper end of the fourth electric control reversing valve through a water pipe; the waste water discharge inlet is arranged at the upper part of the filter shell and is connected with the upper end of the third electric control reversing valve through a water pipe;
the cartridge housing includes: the liquid outlet part is arranged in the middle of the filter element shell, and dense holes are formed in the surface of the liquid outlet part; the filter element is arranged in the filter element shell; the cover plate is hollowed in the middle, is in a ring shape, is arranged at the lower part of the filter element shell, is in threaded fit with the inner wall of the filter element shell, and is abutted with the filter element;
further comprises: the first sealing ring is cylindrical and is arranged at the matching position of the filter element shell and the inner wall of the filter shell; the second sealing ring is arranged at the matching position of the upper parts of the filter element shell and the filter shell.
By adopting the technical scheme, the filter element of the special filter can be conveniently disassembled and washed or replaced, and the maintenance cost is reduced.
Further, the control box includes: the control module receives and sends out control signals; the display screen is electrically connected with the control module; and the alarm is electrically connected with the control module.
Through adopting above-mentioned technical scheme, the display screen can show the hot water temperature and the operating condition of electric water heater, and the alarm sends out the alarm when the waste water dish is full-load, and the suggestion is cleared up the waste water dish, in addition, the second water level sensor also can report to the police when detecting the empty fever in the heating cabinet. The use is visual and clear, and the use convenience is improved.
A working method of a circulating filtration type household electric water heater capable of preventing scale comprises the following steps:
the method comprises the steps that firstly, a heating box is filled with water, a control module controls a water draining electromagnetic valve to be closed, the water inlet electromagnetic valve is opened, a first electric control reversing valve is opened left and right, a second electric control reversing valve is completely closed, a third electric control reversing valve is opened up and down, a fourth electric control reversing valve is opened left and right, a fifth electric control reversing valve is opened left and right, then a water pump starts to work, and water is filled into the heating box through the water inlet electromagnetic valve, a first three-way joint, the first electric control reversing valve, a second three-way joint, the water pump, the third electric control reversing valve, a special filter, the fourth electric control reversing valve and the fifth electric control reversing valve;
step two, water is fed into the cold water tank and is heated by the heating tank, when the water level in the heating tank reaches a first water level sensor, a signal is transmitted to the control module to control the reversing of the fifth electric control reversing valve, water is fed into the cold water tank through the water feeding electromagnetic valve, the first three-way joint, the first electric control reversing valve, the second three-way joint, the water pump, the third electric control reversing valve, the special filter, the fourth electric control reversing valve and the fifth electric control reversing valve, and the heater is started to heat the water in the heating tank;
step three, cold water is circularly filtered, after the water level in the cold water tank reaches the fourth water level sensor, a signal is transmitted to the control module, the water inlet electromagnetic valve is controlled to be closed, the water pump continues to work, water in the cold water tank flows out from the bottom, and the cold water flows back into the cold water tank through the first three-way joint, the first electric control reversing valve, the second three-way joint, the water pump, the third electric control reversing valve, the special filter, the fourth electric control reversing valve and the fifth electric control reversing valve, so that cold water is circularly filtered;
step four, hot water circulation filtration, after the water filtration in the cold water tank is finished, the first electric control reversing valve is completely closed, the second electric control reversing valve is opened and closed left and right, the water pump and the heater continue to work, and the water in the heating tank flows out from the bottom, passes through the second electric control reversing valve, the second three-way joint, the water pump, the third electric control reversing valve, the special filter, the fourth electric control reversing valve and the fifth electric control reversing valve, and flows back into the heating tank to realize hot water circulation filtration;
fifthly, preserving heat, and when water in the heating box is filtered and reaches a specified temperature, reversing the water in the heating box by the second electric control reversing valve;
step six, discharging water, when cold water is needed, the control module controls the first electric control reversing valve to be opened and closed leftwards and rightwards, the second electric control reversing valve to be closed completely, the third electric control reversing valve to be opened upwards and downwards, the fourth electric control reversing valve to be opened leftwards and rightwards, cold water in the cold water tank flows out from the bottom, and flows out from the water discharging joint through the first three-way joint, the first electric control reversing valve, the second three-way joint, the water pump, the third electric control reversing valve, the special filter and the fourth electric control reversing valve; when hot water is needed, the control module controls the first electric control reversing valve to be opened left and right, the second electric control reversing valve to be closed completely, the third electric control reversing valve to be opened up and down, the fourth electric control reversing valve to be opened left and right, hot water in the heat insulation box flows out from the bottom, and flows out from the water outlet joint through the first three-way joint, the first electric control reversing valve, the second three-way joint, the water pump, the third electric control reversing valve, the special filter and the fourth reversing valve;
and seventhly, discharging waste water, wherein the control module controls the left and right opening of the first electric control reversing valve, the second electric control reversing valve is completely closed, the upper and lower opening of the third electric control reversing valve are closed, the fourth electric control reversing valve is completely closed, the drainage electromagnetic valve is opened, hot water in the heat preservation box enters from the waste water outlet, and impurity water below the filter element of the filter is flushed into the waste water disc.
In summary, the present application includes the following beneficial technical effects:
1. the water in the heating box is heated by the heater, so that the spin device is driven to rotate, hot water in the heating box is stirred, mineral is not easy to precipitate to form scale, and the mineral is filtered by the special filter and discharged to the wastewater tray, so that the formation of the scale is effectively prevented, the maintenance cost is reduced, and the heating performance is improved;
2. the heating box heats simultaneously, and the cold water tank filters, has reduced the preparation time before the work, has improved work efficiency.
Drawings
Fig. 1 is a cross-sectional view of a circulating filtration type household electric water heater capable of preventing scale according to an embodiment of the present application.
Fig. 2 is a partial enlarged view of a spin device of a circulating filtration type household electric water heater capable of preventing scale according to an embodiment of the present application.
Fig. 3 is a cross-sectional view of a special filter for a circulating filtration type household electric water heater capable of preventing scale according to an embodiment of the present application.
Fig. 4 is a partial enlarged view of control of a circulating filtration type home electric water heater capable of preventing scale according to an embodiment of the present application.
Reference numerals illustrate:
the shell 1, the chute 11, the pull cover 12, the water inlet joint 13, the water outlet joint 14,
A heating box 2, a first water level sensor 21, a second water level sensor 22, a temperature sensor 23, a heater 24, a spin device 25, a bracket 251, a fan 252, a fan shaft 253,
Insulation box 3, insulation layer 31, third water level sensor 32,
A cold water tank 4, a fourth water level sensor 41,
A waste water disc 5, a fifth water level sensor 51,
Pipeline 6, water inlet electromagnetic valve 601, first three-way joint 602, first electric control reversing valve 603, second three-way joint 604, second electric control reversing valve 605, water pump 606, third electric control reversing valve 607, fourth electric control reversing valve 608, fifth electric control reversing valve 609, water discharge electromagnetic valve 610,
The special filter 7, the filter housing 71, the waste water outlet 711, the filter inlet 712, the filter outlet 713, the waste water outlet 714, the filter housing 72, the liquid outlet 721, the filter element 722, the cover plate 723, the first seal ring 73, the second seal ring 74,
Control box 8, control module 81, display screen 82, alarm 83.
Detailed Description
The following detailed description of the embodiments of the present application, such as the shape and construction of the components, the mutual positions and connection relationships between the components, the roles and working principles of the components, the manufacturing process and the operation and use method, etc., is provided to help those skilled in the art to more fully understand the inventive concept, technical solution of the present invention. For convenience of description, reference is made to the directions shown in the drawings.
Referring to fig. 1 to 4, a circulating filtration type household electric water heater capable of preventing scale, comprising: shell 1, heating cabinet 2, insulation can 3, cold water tank 4, waste water dish, pipeline 6, control box 8:
the heater box 2 is internally provided with a spin device 25 which is matched with a heater 24, the heater 24 heats water to enable the spin device 25 to operate, and hot water in the heater box 2 is stirred.
The spin device 25 is centrally disposed at the bottom of the heating box 2, and includes: the bracket 251 is fixedly connected with the bottom of the heating box 2; the fan blade shaft 253 is vertically arranged at the center of the bracket 251 and fixedly connected with the bracket 251; the fan blade 252 is sleeved on the fan blade shaft 253 and is rotationally connected with the fan blade shaft 253;
the heater 24 is centrally arranged at the bottom of the heating box 2 and is electrically connected with the control box 8.
The heating cabinet 2 sets up in shell 1 upper portion, still includes: the first water level sensor 21 is arranged at the upper part of the heating box 2 and is electrically connected with the control box 8; the second water level sensor 22 is arranged at the lower part of the heating box 2 and is electrically connected with the control box 8; the temperature sensor 23 is arranged in the middle of the heating box 2 and is electrically connected with the control box 8.
The housing 1 includes: a chute 11 provided at the lower portion of the housing 1; the pull cover 12 is arranged at the lower part of the shell 1, is matched with the chute 11 and is hinged with the shell 1; the water inlet joint 13 is arranged at the lower part of the shell 1 and is matched with the water inlet pipe; the water outlet joint 14 is arranged at the upper part of the shell 1 and is matched with the water outlet pipe.
The insulation can 3 sets up at shell 1 middle part, includes: the heat preservation layer 31 is arranged around the inner wall of the heat preservation box 3, and the heat preservation layer is made of a material with poor heat conductivity; the third water level sensor 32 is arranged at the lower part of the incubator 3 and is electrically connected with the control box 8;
the cold water tank 4 is arranged at the lower part of the shell 1 and comprises: a fourth water level sensor 41 disposed at the upper portion of the cold water tank 4 and electrically connected to the control tank 8;
the waste water dish 5 sets up in shell 1 lower part, with spout 11 sliding fit includes: the fifth water level sensor 51 is disposed at the upper part of the wastewater tray 5 and electrically connected with the control box 8.
The volume of the heat preservation box 3 is consistent with the full-load volume of the heating box 2.
The pipeline 6 comprises: a water inlet electromagnetic valve 601, the right side end of which is connected with the water inlet joint 13; the upper end of the first three-way joint 602 is communicated with the bottom of the cold water tank 4 through a water pipe, and the right side end of the first three-way joint is connected with the left side end of the water inlet electromagnetic valve 601 through a water pipe; the left end of the first electric control reversing valve 603 is connected with the left end of the first three-way joint 602 through a water pipe, and the right end of the first electric control reversing valve is communicated with the bottom of the heat preservation box 3 through a water pipe; the lower end of the second three-way joint 604 is connected with the upper end of the first electric control reversing valve 603 through a water pipe; the upper end of the second electric control reversing valve 605 is communicated with the bottom of the heating box 2 through a water pipe, the right side end of the second electric control reversing valve is communicated with the upper part of the heat insulation box 3 through a water pipe, and the left side end of the second electric control reversing valve is connected with the side end of the second three-way joint 604 through a water pipe; the lower end of the water pump 606 is connected with the upper end of the second three-way joint 604 through a water pipe; the right side end of the third electric control reversing valve 607 is connected with the upper end of the water pump 606 through a water pipe; the upper part of the special filter 7 is connected with the upper end of the third electric control reversing valve 607 through a water pipe, and the lower part of the special filter is connected with the lower end of the third electric control reversing valve 607 through a water pipe; the upper end of the fourth electric control reversing valve 608 is connected with the upper part of the special filter 7 through a water pipe, and the left side end of the fourth electric control reversing valve is connected with the water outlet joint 14 through a water pipe; the upper end of the fifth electric control reversing valve 609 is connected with the right side end of the fourth electric control reversing valve 608 through a water pipe, the left side end of the fifth electric control reversing valve is communicated with the upper part of the cold water tank 4 through a water pipe, and the right side end of the fifth electric control reversing valve is communicated with the upper part of the heating tank 2 through a water pipe; a drainage electromagnetic valve 610, the upper end of which is connected with the lower part of the special filter 7 through a water pipe, and the lower end of which is communicated with the wastewater tray 5 through a water pipe;
the water inlet electromagnetic valve 601 is electrically connected with the control box 8; the first electrically controlled reversing valve 603 is electrically connected with the control box 8; the second electrically controlled reversing valve 605 is electrically connected with the control box 8; the third electrically controlled reversing valve 607 is electrically connected with the control box 8; the fourth electrically controlled reversing valve 608 is electrically connected with the control box 8; the fifth electrically controlled reversing valve 609 is electrically connected with the control box 8; the water pump 606 is electrically connected with the control box 8; the drain solenoid valve 610 is electrically connected to the control box 8.
The special filter 7 comprises: a filter housing 71, a cartridge housing 72 screw-fitted with the filter housing 71;
the filter housing 71 is open at an upper end, and includes: a waste water outlet 711 provided at the bottom of the filter housing 71 and connected to the drain solenoid valve 610 through a water pipe; a filtering inlet 712, which is arranged at the lower part of the side wall of the filter housing 71 and is connected with the lower end of the third electrically controlled reversing valve 607 through a water pipe; a filtering outlet 713, which is arranged at the upper part of the side wall of the filter housing 71 and is connected with the upper end of the fourth electrically controlled reversing valve 608 through a water pipe; a waste water outlet 714 arranged at the upper part of the filter housing 71 and connected with the upper end of the third electrically controlled reversing valve 607 through a water pipe;
the cartridge housing 72 includes: the liquid outlet part 721 is arranged in the middle of the filter element shell 72, and dense holes are formed in the surface of the liquid outlet part; a filter element 722 disposed within the filter element housing 72; the cover plate 723 is hollowed in the middle, is in a ring shape, is arranged at the lower part of the filter element shell 72, is in threaded fit with the inner wall of the filter element shell 72, and is abutted against the filter element 722;
further comprises: a first seal ring 73 having a cylindrical shape, and disposed at a position where the filter element housing 72 is engaged with the inner wall of the filter housing 71; a second seal ring 74 is provided at the upper portion of the filter housing 72 and the filter housing 71.
The control box 8 includes: a control module 81 for receiving and sending out control signals; the display screen 82 is electrically connected with the control module 81; the alarm 83 is electrically connected with the control module 81.
A working method of a circulating filtration type household electric water heater capable of preventing scale comprises the following steps:
firstly, the heating box 2 is filled with water, the control module 81 controls the water draining electromagnetic valve 610 to be closed, the water inlet electromagnetic valve 601 is opened, the first electric control reversing valve 603 is opened left and right, the second electric control reversing valve 605 is completely closed, the third electric control reversing valve 607 is opened up and down, the fourth electric control reversing valve 608 is opened left and right, the fifth electric control reversing valve 609 is opened left and right, then the water pump 606 starts to work, and water is filled into the heating box 2 through the water inlet electromagnetic valve 601, the first three-way joint 602, the first electric control reversing valve 603, the second three-way joint 604, the water pump 606, the third electric control reversing valve 607, the special filter 7, the fourth electric control reversing valve 608 and the fifth electric control reversing valve 609;
step two, when water in the cold water tank 4 enters and the heating tank 2 is heated, when the water level in the heating tank 2 reaches the first water level sensor 21, a signal is transmitted to the control module 81, the fifth electric control reversing valve 609 is controlled to reverse, and the water flows through the water inlet electromagnetic valve 601, the first three-way joint 602, the first electric control reversing valve 603, the second three-way joint 604, the water pump 606, the third electric control reversing valve 607, the special filter 7, the fourth electric control reversing valve 608 and the fifth electric control reversing valve 609 to fill water in the cold water tank 4, and the heater 24 is started to heat the water in the heating tank 2;
step three, cold water is circularly filtered, after the water level in the cold water tank 4 reaches the fourth water level sensor 41, a signal is transmitted to the control module 81, the water inlet electromagnetic valve 601 is controlled to be closed, the water pump 606 continues to work, water in the cold water tank 4 flows out from the bottom, and the cold water flows back into the cold water tank 4 through the first three-way joint 602, the first electric control reversing valve 603, the second three-way joint 604, the water pump 606, the third electric control reversing valve 607, the special filter 7, the fourth electric control reversing valve 608 and the fifth electric control reversing valve 609 to realize cold water circulation filtration;
step four, hot water circulation filtration, after the water filtration in the cold water tank 4 is completed, the first electric control reversing valve 603 is completely closed, the second electric control reversing valve 605 is opened and closed left and right, the water pump 606 and the heater 24 continue to work, water in the heating tank 2 flows out from the bottom, flows through the second electric control reversing valve 605, the second three-way joint 604, the water pump 606, the third electric control reversing valve 607, the special filter 7, the fourth electric control reversing valve 608 and the fifth electric control reversing valve 609, and flows back into the heating tank 2 to realize hot water circulation filtration;
step five, preserving heat, and when the water in the heating box 2 is filtered and reaches a specified temperature, reversing the second electric control reversing valve 605, and flowing the water in the heating box 2 into the heat preservation box 3;
step six, when cold water is needed to be used, the control module 81 controls the first electric control reversing valve 603 to open left and right, the second electric control reversing valve 605 to be closed completely, the third electric control reversing valve 607 to open up and down, the fourth electric control reversing valve 608 to open left and right, cold water in the cold water tank 4 flows out from the bottom, and flows out from the water outlet joint 14 through the first three-way joint 602, the first electric control reversing valve 603, the second three-way joint 604, the water pump 606, the third electric control reversing valve 607, the special filter 7 and the fourth electric control reversing valve 608; when hot water is needed, the control module 81 controls the first electric control reversing valve 603 to be opened left and right, the second electric control reversing valve 605 to be closed completely, the third electric control reversing valve 607 to be opened up and down, the fourth electric control reversing valve 608 to be opened left and right, hot water in the heat insulation box 3 flows out from the bottom, and flows out from the water outlet joint 14 through the first three-way joint 602, the first electric control reversing valve 603, the second three-way joint 604, the water pump 606, the third electric control reversing valve 607, the special filter 7 and the fourth reversing valve;
step seven, the control module 81 controls the first electrically controlled reversing valve 603 to be opened left and right, the second electrically controlled reversing valve 605 to be closed completely, the third electrically controlled reversing valve 607 to be opened up and down, the fourth electrically controlled reversing valve 608 to be closed completely, the water draining solenoid valve 610 to be opened, hot water in the heat preservation box 3 to enter from the water draining inlet 714, and impurity water below the filter element 722 of the filter to be washed into the waste water tray 5.
The working principle of the circulating filtration type household electric water heater capable of preventing scale is as follows: the heater is positioned at the bottom of the heating tank, and the temperature of the water in the heating tank is higher as the water is closer to the bottom, so that a temperature difference is generated, and convection is sent. Convection generally occurs when there is a temperature difference between the fluid or between the fluid and the container, because the temperature difference causes a difference in intimacy between the fluids, and when a portion of the liquid or gaseous material is heated, the volume expands, the density decreases, and the density gradually increases, where it is replenished by a lower ambient temperature, higher density material which in turn is heated up, and the ambient material is replenished, so that the circulation is lost, thereby spreading heat from the flowing fluid around. The water is heated and rises, the water flows through the surfaces of the fan blades, vertical thrust from the water is received, and because the fan blades are inclined, the vertical thrust from the water acts on the fan blades to form horizontal force, so that rotation occurs, the water in the heating box is stirred, mineral substances generated by boiling the water are continuously stirred and uniformly distributed in the heating box, and the phenomenon of scale generation after deposition of the mineral substances in the heating box is prevented. When the hot water is circulated and filtered, the scale is filtered below the filter element along with the water in the heating box through the special filter and then enters the wastewater tray when the wastewater is discharged. The spin device, the heater and the special filter are mutually matched, so that the generation of scale is greatly reduced.
The invention and its embodiments have been described above schematically, without limitation, and the drawings illustrate only one embodiment of the invention and the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical scheme are not creatively devised without departing from the gist of the present invention, and all the structural manners and the embodiment are considered to be within the protection scope of the present invention.
Claims (4)
1. A circulating filtration type household electric water heater capable of preventing scale, comprising: shell (1), heating cabinet (2), insulation can (3), cold water tank (4), waste water dish (5), pipeline (6), control box (8), its characterized in that:
a spin device (25) is arranged in the heating box (2) and matched with a heater (24), the heater (24) heats water to enable the spin device (25) to operate, and hot water in the heating box (2) is stirred;
the heating cabinet (2) sets up in shell (1) upper portion, still includes: the first water level sensor (21) is arranged at the upper part of the heating box (2) and is electrically connected with the control box (8); the second water level sensor (22) is arranged at the lower part of the heating box (2) and is electrically connected with the control box (8); the temperature sensor (23) is arranged in the middle of the heating box (2) and is electrically connected with the control box (8);
the housing (1) comprises: the sliding groove (11) is arranged at the lower part of the shell (1); the pull cover (12) is arranged at the lower part of the shell (1), is matched with the chute (11) and is hinged with the shell (1); the water inlet joint (13) is arranged at the lower part of the shell (1) and is matched with the water inlet pipe; the water outlet joint (14) is arranged at the upper part of the shell (1) and is matched with the water outlet pipe;
the insulation can (3) sets up at shell (1) middle part, includes: the heat preservation layer (31) is arranged around the inner wall of the heat preservation box (3), and the heat preservation layer is made of a material with poor heat conductivity; the third water level sensor (32) is arranged at the lower part of the heat preservation box (3) and is electrically connected with the control box (8);
the cold water tank (4) is arranged at the lower part of the shell (1), and comprises: the fourth water level sensor (41) is arranged at the upper part of the cold water tank (4) and is electrically connected with the control box (8);
the waste water dish (5) sets up in shell (1) lower part, with spout (11) sliding fit includes: the fifth water level sensor (51) is arranged at the upper part of the wastewater disc (5) and is electrically connected with the control box (8);
the volume of the heat preservation box (3) is consistent with the full-load volume of the heating box (2);
the pipeline (6) comprises: a water inlet electromagnetic valve (601), the right side end of which is connected with the water inlet joint (13); the upper end of the first three-way joint (602) is communicated with the bottom of the cold water tank (4) through a water pipe, and the right side end of the first three-way joint is connected with the left side end of the water inlet electromagnetic valve (601) through a water pipe; the left end of the first electric control reversing valve (603) is connected with the left end of the first three-way joint (602) through a water pipe, and the right end of the first electric control reversing valve is communicated with the bottom of the insulation box (3) through a water pipe; the lower end of the second three-way joint (604) is connected with the upper end of the first electric control reversing valve (603) through a water pipe; the upper end of the second electric control reversing valve (605) is communicated with the bottom of the heating box (2) through a water pipe, the right side end of the second electric control reversing valve is communicated with the upper part of the heat insulation box (3) through a water pipe, and the left side end of the second electric control reversing valve is connected with the side end of the second three-way joint (604) through a water pipe; the lower end of the water pump (606) is connected with the upper end of the second three-way joint (604) through a water pipe; the right side end of the third electric control reversing valve (607) is connected with the upper end of the water pump (606) through a water pipe; the upper part of the special filter (7) is connected with the upper end of the third electric control reversing valve (607) through a water pipe, and the lower part of the special filter is connected with the lower end of the third electric control reversing valve (607) through a water pipe; the upper end of the fourth electric control reversing valve (608) is connected with the upper part of the special filter (7) through a water pipe, and the left side end of the fourth electric control reversing valve is connected with the water outlet joint (14) through a water pipe; the upper end of the fifth electric control reversing valve (609) is connected with the right side end of the fourth electric control reversing valve (608) through a water pipe, the left side end of the fifth electric control reversing valve is communicated with the upper part of the cold water tank (4) through a water pipe, and the right side end of the fifth electric control reversing valve is communicated with the upper part of the heating tank (2) through a water pipe; a drainage electromagnetic valve (610), the upper end of which is connected with the lower part of the special filter (7) through a water pipe, and the lower end of which is communicated with the wastewater tray (5) through a water pipe;
the water inlet electromagnetic valve (601) is electrically connected with the control box (8); the first electric control reversing valve (603) is electrically connected with the control box (8); the second electric control reversing valve (605) is electrically connected with the control box (8); the third electric control reversing valve (607) is electrically connected with the control box (8); the fourth electric control reversing valve (608) is electrically connected with the control box (8); the fifth electric control reversing valve (609) is electrically connected with the control box (8); the water pump (606) is electrically connected with the control box (8); the drainage electromagnetic valve (610) is electrically connected with the control box (8);
the special filter (7) comprises: a filter housing (71), a cartridge housing (72) threadedly engaged with the filter housing (71);
the filter housing (71) has an upper end opening, and comprises: a waste water outlet (711) arranged at the bottom of the filter housing (71) and connected with the drainage electromagnetic valve (610) through a water pipe; the filtering inlet (712) is arranged at the lower part of the side wall of the filter shell (71) and is connected with the lower end of the third electric control reversing valve (607) through a water pipe; the filtering outlet (713) is arranged at the upper part of the side wall of the filter shell (71) and is connected with the upper end of the fourth electric control reversing valve (608) through a water pipe; a waste water outlet (714) which is arranged at the upper part of the filter shell (71) and is connected with the upper end of the third electric control reversing valve (607) through a water pipe;
the cartridge housing (72) includes: the liquid outlet part (721) is arranged in the middle of the filter element shell (72), and dense holes are formed in the surface of the liquid outlet part; a filter element (722) disposed within the filter element housing (72); the cover plate (723) is hollowed in the middle, is in a ring shape, is arranged at the lower part of the filter element shell (72), is in threaded fit with the inner wall of the filter element shell (72), and is abutted with the filter element (722);
further comprises: the first sealing ring (73) is cylindrical and is arranged at the matching position of the filter element shell (72) and the inner wall of the filter shell (71); and a second sealing ring (74) which is arranged at the matching position of the filter element shell (72) and the upper part of the filter shell (71).
2. The circulating filtration type household electric water heater capable of preventing scale according to claim 1, wherein:
the spin device (25) is arranged at the bottom of the heating box (2) in the middle, and comprises: the bracket (251) is fixedly connected with the bottom of the heating box (2); the fan blade shaft (253) is vertically arranged at the center of the bracket (251) and is fixedly connected with the bracket (251); the fan blade (252) is sleeved on the fan blade shaft (253) and is rotationally connected with the fan blade shaft (253);
the heater (24) is arranged at the bottom of the heating box (2) in the middle and is electrically connected with the control box (8).
3. The circulating filtration type household electric water heater capable of preventing scale according to claim 1, wherein:
the control box (8) comprises: a control module (81) for receiving and sending out control signals; the display screen (82) is electrically connected with the control module (81); and the alarm (83) is electrically connected with the control module (81).
4. The working method of the circulating filtration type household electric water heater capable of preventing scale is characterized by comprising the following steps of:
firstly, a heating box (2) is filled with water, a control module (81) controls a water discharge electromagnetic valve (610) to be closed, a water inlet electromagnetic valve (601) is opened, a first electric control reversing valve (603) is opened left and right, a second electric control reversing valve (605) is closed completely, a third electric control reversing valve (607) is opened up and down, a fourth electric control reversing valve (608) is opened left and right, a fifth electric control reversing valve (609) is opened left and right, then a water pump (606) starts to work, and water is injected into the heating box (2) through the water inlet electromagnetic valve (601), a first three-way joint (602), the first electric control reversing valve (603), a second three-way joint (604), the water pump (606), the third electric control reversing valve (607), a special filter (7), the fourth electric control reversing valve (608) and the fifth electric control reversing valve (609);
step two, a cold water tank (4) is filled with water and a heating tank (2) is heated, when the water level in the heating tank (2) reaches a first water level sensor (21), a signal is transmitted to a control module (81), a fifth electric control reversing valve (609) is controlled to reverse, and water flows through a water inlet electromagnetic valve (601), a first three-way joint (602), a first electric control reversing valve (603), a second three-way joint (604), a water pump (606), a third electric control reversing valve (607), a special filter (7), a fourth electric control reversing valve (608) and the fifth electric control reversing valve (609), water is filled into the cold water tank (4), and a heater (24) is started to heat the water in the heating tank (2);
step three, cold water is circularly filtered, after the water level in the cold water tank (4) reaches the fourth water level sensor (41), a signal is transmitted to the control module (81), the water inlet electromagnetic valve (601) is controlled to be closed, the water pump (606) continues to work, water in the cold water tank (4) flows out from the bottom, and the cold water is circularly filtered through the first three-way joint (602), the first electric control reversing valve (603), the second three-way joint (604), the water pump (606), the third electric control reversing valve (607), the special filter (7), the fourth electric control reversing valve (608) and the fifth electric control reversing valve (609) and flows back into the cold water tank (4);
step four, hot water circulation filtration, after the water filtration in the cold water tank (4) is completed, the first electric control reversing valve (603) is completely closed, the second electric control reversing valve (605) is opened and closed left and right, the water pump (606) and the heater (24) continue to work, water in the heating tank (2) flows out from the bottom, passes through the second electric control reversing valve (605), the second three-way joint (604), the water pump (606), the third electric control reversing valve (607), the special filter (7), the fourth electric control reversing valve (608) and the fifth electric control reversing valve (609), and flows back into the heating tank (2) to realize hot water circulation filtration;
fifthly, preserving heat, and when water in the heating box (2) is filtered and reaches a specified temperature, reversing the second electric control reversing valve (605), wherein water in the heating box (2) flows into the heat preservation box (3);
step six, when cold water is needed to be used, the control module (81) controls the first electric control reversing valve (603) to be opened and closed leftwards and rightwards, the second electric control reversing valve (605) to be closed completely, the third electric control reversing valve (607) to be opened upwards and downwards, the fourth electric control reversing valve (608) to be opened leftwards and rightwards, cold water in the cold water tank (4) flows out from the bottom through the first three-way joint (602), the first electric control reversing valve (603), the second three-way joint (604), the water pump (606), the third electric control reversing valve (607), the special filter (7) and the fourth electric control reversing valve (608) and flows out from the water outlet joint (14); when hot water is needed to be used, the control module (81) controls the first electric control reversing valve (603) to be opened left and right, the second electric control reversing valve (605) to be closed completely, the third electric control reversing valve (607) to be opened up and down, the fourth electric control reversing valve (608) to be opened left and right, hot water in the heat insulation box (3) flows out from the bottom, and flows out from the water outlet joint (14) through the first three-way joint (602), the first electric control reversing valve (603), the second three-way joint (604), the water pump (606), the third electric control reversing valve (607), the special filter (7) and the fourth reversing valve;
seventh, the control module (81) controls the first electric control reversing valve (603) to be opened left and right, the second electric control reversing valve (605) to be closed completely, the third electric control reversing valve (607) to be opened up and closed down, the fourth electric control reversing valve (608) to be closed completely, the drainage solenoid valve (610) to be opened, hot water in the incubator (3) to enter from the waste water outlet (714) and impurity water below the filter element (722) of the filter to be washed into the waste water disc (5).
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