CN113639460B - Self-cleaning system and self-cleaning method for gas water heater - Google Patents
Self-cleaning system and self-cleaning method for gas water heater Download PDFInfo
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- CN113639460B CN113639460B CN202111076766.4A CN202111076766A CN113639460B CN 113639460 B CN113639460 B CN 113639460B CN 202111076766 A CN202111076766 A CN 202111076766A CN 113639460 B CN113639460 B CN 113639460B
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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
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
- F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
- F24H1/145—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form using fluid fuel
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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
- F24H9/0005—Details for water heaters
- F24H9/0042—Cleaning arrangements
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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
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention provides a self-cleaning system of a gas water heater, which comprises a circulating pipeline, a water pump, an adding tank, a total water inlet valve, a controller, a WIFI module and mobile equipment APP. The circulating pipeline comprises a cold-hot conversion pipeline and a cold water pipeline communicated with the cold-hot conversion pipeline through a one-way valve, the cold-hot conversion pipeline comprises a cold water side and a hot water side communicated with the cold water side, and a cold water outlet and a hot water outlet controlled by a water outlet valve are arranged at the joint of the hot conversion pipeline and the cold water pipeline. The water pump is arranged on the cold water inlet side. The adding tank is arranged on the cold water inlet side and is communicated with the cold water pipeline through an electromagnetic valve. The main water inlet valve is arranged at the water inlet end of the circulating pipeline to control the on-off of the circulating pipeline and external water supply. The controller is used for controlling the one-way valve, the water pump and the electromagnetic valve. The WIFI module is arranged in the gas water heater and is electrically connected with the controller. The mobile device APP is in communication connection with the WIFI module. The self-cleaning system of the gas water heater can realize self cleaning, is simple to operate, reduces cleaning cost and does not need on-site duty.
Description
Technical Field
The invention relates to the field of kitchen appliances, in particular to a gas water heater self-cleaning system and a gas water heater self-cleaning method.
Background
The household waterway pipeline is used for a long time, and scale deposition is unavoidable. Especially hot water heated by the gas water heater can further cause scale deposition. Therefore, the water pipe cleaning household service is also available in the market, and the cost is low.
Disclosure of Invention
The invention aims to provide a self-cleaning system of a gas water heater, which can realize self-cleaning, is simple to operate, reduces cleaning cost and does not need on-site duty.
The invention also aims to provide a self-cleaning method of the gas water heater.
In order to achieve the purpose of the invention, the invention adopts the following technical scheme:
according to one aspect of the invention, a self-cleaning system of a gas water heater is provided, which comprises a circulating pipeline, a water pump, an adding tank, a total water inlet valve, a controller, a WIFI module and a mobile device APP. The circulating pipeline comprises a cold-hot conversion pipeline and a cold water pipeline communicated with the cold-hot conversion pipeline through a one-way valve, wherein the cold-hot conversion pipeline comprises a cold water side and a hot water side communicated with the cold water side, and a cold water outlet and a hot water outlet controlled by a water outlet valve are arranged at the joint of the hot conversion pipeline and the cold water pipeline. The water pump is arranged on the cold water inlet side. The adding tank is arranged on the cold water inlet side and is communicated with the cold water pipeline through an electromagnetic valve. The total water inlet valve is arranged at the water inlet end of the circulating pipeline to control the on-off of the circulating pipeline and external water supply. The controller is used for controlling the one-way valve, the water pump and the electromagnetic valve. The WIFI module is arranged in the gas water heater and is electrically connected with the controller. And the mobile equipment APP is in communication connection with the WIFI module.
According to the embodiment of the invention, the mobile equipment APP is used for setting the dissolution ratio, the dissolution temperature and the scouring soaking time, and the mobile equipment APP is provided with a self-cleaning operation step which is realized by communicating with the WIFI module so as to realize the step operation without on-site watching.
According to another aspect of the invention, there is provided a self-cleaning method of a gas water heater, which adopts the self-cleaning system of the gas water heater, and comprises closing a main water inlet valve of the gas water heater and opening a one-way valve; adding a detergent into the addition tank; starting a self-cleaning function to enable water flow to flow into the adding tank to dissolve the descaling agent, and starting a water pump to enable the descaling agent to circularly flow along with a circulating pipeline; the heating function of the gas water heater is started, and when the temperature of the inlet water reaches the set dissolution temperature, the heating is stopped; in the scouring soaking time, the water pump is started and stopped at intervals, and the circulating pipeline is scoured and soaked; after the flushing is finished, starting a reminding function and a drainage function; after the water discharge is completed, the water outlet valve is closed, and the self-cleaning function is closed.
According to an embodiment of the present invention, wherein closing the main water inlet valve and opening the check valve of the gas water heater comprises: before self-cleaning, manually closing a total water inlet valve of the gas water heater to avoid dilution and running away after adding the scale remover; and opening the check valve so that the circulation line forms a water flow path from the cold-to-hot conversion line to the cold water line.
According to an embodiment of the invention, wherein the detergent is added to the addition tank comprises: setting a dissolution ratio in an APP of the mobile device according to the type of the detergent; calculating the water flow speed by utilizing a water flow sensor arranged in the circulating pipeline of the gas water heater, and further calculating the water storage capacity in the circulating pipeline; calculating the consumption of the dissolving agent according to the dissolution ratio and the water storage amount; and adding the calculated amount of the dissolving agent to the addition tank.
According to one embodiment of the invention, after the self-cleaning function of the gas water heater is started, the electromagnetic valve for controlling the opening and closing of the adding tank is opened, water flows into the adding tank, the descaling agent is dissolved, the water pump in the circulating pipeline is started, so that the water flow in the circulating pipeline circularly flows, and therefore the descaling agent dissolved in the water flow also circularly flows.
According to an embodiment of the invention, wherein the solenoid valve remains fully suction valve during self-cleaning, wherein the solenoid valve is run under reduced pressure to reduce the solenoid valve temperature rise.
According to one embodiment of the invention, the electromagnetic valve is a 24V braking electromagnetic valve, the electromagnetic valve is full of voltage for 24V suction valve 5s, then the voltage is reduced and maintained at 15V-18V, and the temperature rise of the electromagnetic valve is reduced.
According to one embodiment of the invention, the set dissolution temperature is 60 ℃, and when the water inlet temperature of the gas water heater reaches 60 ℃, the gas water heater stops heating.
According to an embodiment of the present invention, the water pump is started for 1 minute to wash the circulation line, then stopped for 1 minute to soak the circulation line, and repeated for 30 minutes, so that the scale is sufficiently dissolved and prevented from being redeposited.
According to an embodiment of the present invention, after the flushing is completed, the opening of the reminding function and the draining function includes: after the self-cleaning is finished, reminding to start a drainage function through the whole machine buzzing of the gas water heater or the mobile equipment APP; and opening the water outlet valve and the total water inlet valve, and starting the water pump to accelerate water discharge when water flow is detected.
According to one embodiment of the invention, after the water draining function is started for 3 minutes, the whole gas water heater buzzes or the mobile equipment APP reminds an operator to switch the cold water outlet and the hot water outlet; and
after the water draining function is started for 6 minutes, an operator is reminded of confirming whether the drained water has peculiar smell or not through the whole machine buzzing of the gas water heater or the mobile equipment APP.
According to an embodiment of the invention, the self-cleaning function is turned off when the operator confirms that no odor is present in the discharge water, after which no water flow in the circulation line is detected for 10 seconds.
One embodiment of the present invention has the following advantages or benefits:
the self-cleaning system of the gas water heater comprises a circulating pipeline, a water pump, an adding tank, a total water inlet valve, a controller, a WIFI module and mobile equipment APP. The mobile device APP is stored with self-cleaning operation steps. The WIFI module can communicate with the mobile device APP to prompt the current operation procedure. The controller is electrically connected with the WIFI module to indicate the control action of the controller. The self-cleaning can be realized by adding the scale remover into the adding tank and then circulating in the circulating pipeline through the water pump, the operation is simple, the cleaning cost is reduced, and the site on duty is not required.
Drawings
The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.
FIG. 1 is a schematic diagram of a gas water heater self-cleaning system, according to an exemplary embodiment.
FIG. 2 is a partial schematic illustration of a gas water heater side of a gas water heater self-cleaning system according to an exemplary embodiment.
FIG. 3 is a schematic diagram illustrating a gas water heater self-cleaning method according to an exemplary embodiment.
Wherein reference numerals are as follows:
1. a circulation line; 11. a cold-hot conversion pipeline; 111. a cold water side; 112. a hot water side; 12. a cold water pipeline; 13. a one-way valve; 2. a water pump; 3. an addition tank; 4. an electromagnetic valve; 5. and a total water inlet valve.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted.
The terms "a," "an," "the," and "said" are used to indicate the presence of one or more elements/components/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.
As shown in fig. 1 to 2, fig. 1 shows a schematic diagram of a self-cleaning system of a gas water heater provided by the invention. Fig. 2 shows a schematic side view of a gas water heater of the self-cleaning system of the gas water heater.
The self-cleaning system of the gas water heater comprises a circulating pipeline 1, a water pump 2, an adding tank 3, an electromagnetic valve 4, a total water inlet valve 5, a controller, a WIFI module and mobile equipment APP. The circulation pipeline 1 comprises a cold-hot conversion pipeline 11 and a cold water pipeline 12 communicated with the cold-hot conversion pipeline 11 through a one-way valve 13, wherein the cold-hot conversion pipeline 11 comprises a cold water side 111 and a hot water side 112 communicated with the cold water side 111, and a cold water outlet and a hot water outlet controlled by a water outlet valve are arranged at the joint of the heat conversion pipeline 11 and the cold water pipeline 12. The water pump 2 is arranged on the cold water inlet side. The addition tank 3 is provided on the cold water intake side 11 and communicates with the cold water pipe 12 through the solenoid valve 4. The general water inlet valve 5 is provided at the water inlet end of the circulation line 1 to control the communication of the circulation line 1 with the external water supply. The controller is used for controlling the one-way valve 13, the water pump 2 and the electromagnetic valve 4. The WIFI module is arranged in the gas water heater and is electrically connected with the controller. The mobile device APP is in communication connection with the WIFI module. The mobile equipment APP is used for setting the dissolution ratio, the dissolution temperature and the scouring soaking time, and the mobile equipment APP is provided with a self-cleaning operation step which is communicated with the WIFI module to realize the step operation without on-site on duty.
Wherein the circulation line 1 can form a closed circuit through the non-return valve 13. The external water supply enters the circulating pipeline 1 through the main water inlet valve 5 and is divided into two paths. One path flows through the cold water pipeline 12 and flows out through the cold water outlet. One path of the hot water flows into the cold water side 111 through the cold-hot conversion pipeline 11, is heated by the gas water heater, and then becomes hot water, and flows from the hot water side 112 to the hot water outlet and flows out. The water outlet valve can control the opening and closing of the cold water outlet and the hot water outlet. The mobile device APP is provided with operation steps in advance, the WIFI module can be utilized to prompt the mobile device APP to carry out corresponding steps through communication with the WIFI module, and the mobile device APP prompts an operator to operate, so that on-site unattended operation is realized. When an operator is positioned near the gas water heater, the gas water heater can also be realized by the whole machine buzzing of the gas water heater.
Fig. 3 shows a schematic diagram of a self-cleaning method of a gas water heater provided by the invention.
The self-cleaning method of the gas water heater provided by the embodiment of the invention comprises the following steps of:
s1: closing the total water inlet valve 5 of the gas water heater and opening the one-way valve 13;
s2: adding a detergent to the addition tank 3;
s3: starting a self-cleaning function, enabling water flow to flow into the adding tank 3 to dissolve the descaling agent, and starting the water pump 2 to enable the descaling agent to flow along with the circulating pipeline 1 in a circulating way;
s4: turning on the heating function of the gas water heater, and stopping heating when the temperature of the inlet water reaches the set dissolution temperature;
s5: in the scouring soaking time, the water pump 2 is started and stopped at intervals, and the circulating pipeline 1 is scoured and soaked;
s6: after the flushing is finished, starting a reminding function and a drainage function; and
s7: after the water discharge is completed, the water outlet valve is closed, and the self-cleaning function is closed.
As shown in fig. 3, step S1 may implement the circulation line 1 to form a passage. Step S2, adding a scale remover to the adding tank 3 on the passage for subsequent scale removal. In the step S3, the self-cleaning worker turns on the water pump 2 to melt the descaling agent into water so as to circulate in the circulation pipeline 1. Step S4, heating the cold water in the circulating pipeline 1 to completely melt the descaling agent into the water. And S5, after the descaling agent is completely dissolved, the water pump 2 is started and stopped at intervals to realize the interval circulation of water, and the water scale flushing and water scale soaking are circularly carried out. Step S6 is to remove scale and then discharge it out of the circulation line 1. Finally, step S7 completes the self-cleaning function.
In a preferred embodiment of the present invention, closing the total inlet valve 5 and opening the one-way valve 13 of the gas water heater comprises: before self-cleaning, the total water inlet valve 5 of the gas water heater is manually closed to avoid dilution and running away after adding the scale remover; and opening the check valve 13 so that the circulation line 1 forms a water flow path from the cold-heat converting line 11 to the cold water line 12.
As shown in fig. 3, before the self-cleaning function is used, a user is required to manually close the total water inlet valve 5 in the house where the gas water heater is located. Avoid diluting the scale remover and not fully dissolving the scale of the circulating pipeline 1. Avoiding the detergent from flowing to the families of other users, and causing peculiar smell although harmless.
In a preferred embodiment of the present invention, the addition of the detergent to the addition tank 3 includes: setting a dissolution ratio in an APP of the mobile equipment according to the type of the detergent; calculating the water flow speed by using a water flow sensor arranged in a circulating pipeline 1 of the gas water heater, and further calculating the water storage capacity in the circulating pipeline 1; calculating the consumption of the dissolving agent according to the dissolution ratio and the water storage amount; and adding the calculated amount of the dissolving agent to the addition tank 3.
As shown in fig. 3, the detergent dosage is automatically calculated by the program after the user sets the dissolution ratio on APP (the user sets according to the detergent solvent ratio selected by himself). For example: the user dissolution ratio was set to 1:50. The gas water heater with the water pump 2 has the cold water preheating function. When the user uses the water pipe preheating function, the program has automatically calculated the pipe water storage. The calculation method is as follows: the gas water heater is provided with a water flow sensor for controlling the start and stop of the gas water heater (after the water flow is larger than the start flow, the gas water heater is ignited and burnt). The device is used for obtaining the water flow speed aL/min of each second, and multiplying the water flow speed aL/min by 1S to obtain the water flow (aL/min/60) 1S flowing in 1S. Hot water from the water outlet of the gas water heater is driven by the water pump 2 to flow back to the water inlet of the gas water heater. The water temperature is continuously reduced in the reflux process (heat exchange with the cold water of the previous section, heat exchange with a pipeline and the like). When the temperature of the inlet water starts to rise, the hot water at the water outlet can be considered to flow back to the water inlet. In order to avoid misjudgment, the temperature of the rising heat is set to be 2-3 ℃. At this time, the accumulated calculation of the water flow in the pipeline is completed, and the water storage capacity of the pipeline is
For example, the water storage amount is 4L. Then, the dissolution ratio was set to 1:50, and the pipe water storage amount was 4L. The amount of the dissolving agent used was X=4000 mL/50=80 g.
In a preferred embodiment of the present invention, after the self-cleaning function of the gas water heater is started, the solenoid valve 4 controlling the opening and closing of the addition tank 3 is opened, water flows into the addition tank 3, the detergent is dissolved, the water pump 2 in the circulation line 1 is started, so that the water flow in the circulation line 1 circulates, and thus the detergent dissolved in the water flow also circulates.
As shown in fig. 1 to 3, the electromagnetic valve 4 is a normally closed electromagnetic valve, that is, when not in use, the water inlet of the adding tank 3 is closed at any time, and a user can detach the adding tank 3 at any time, so that the trouble of emptying the stored water before detaching the stored water is avoided.
In a preferred embodiment of the invention, the solenoid valve 4 remains fully suction valve during self-cleaning, wherein the solenoid valve 4 is run at reduced pressure to reduce the temperature rise of the solenoid valve 4. The electromagnetic valve 4 is a 24V braking electromagnetic valve, the electromagnetic valve 4 is full of voltage 24V suction valve 5s, then the voltage is reduced and maintained at 15V-18V, and the temperature of the electromagnetic valve 4 is reduced.
Wherein, in order to fully dissolve the solvent in the adding tank 3, the electromagnetic valve 4 needs to keep the suction valve in the whole process during the self-cleaning period. I.e. the valve suction time will be long, and the temperature rise problem of the solenoid valve 4 needs to be fully considered.
In a preferred embodiment of the invention, the dissolution temperature is set to 60 ℃, and when the water inlet temperature of the gas water heater reaches 60 ℃, the gas water heater stops heating.
As shown in FIG. 3, the water inlet temperature of the gas water heater is set to be the dissolution temperature, and when the water inlet temperature is more than or equal to 60 ℃, the scale remover is fully dissolved.
In a preferred embodiment of the present invention, the water pump 2 is started to flush the circulation line 1 for 1 minute, then stopped to soak the circulation line 1 for 1 minute, and repeated for 30 minutes, so that the scale is sufficiently dissolved and redeposition is prevented.
As shown in fig. 1 to 3, after the heating is completed, the gas water heater is blocked, and the ignition cannot be performed until the inlet water temperature is reduced to the bath set temperature. At this time, the water pump 2 is started for 1 minute, and stopped for 1 minute, and the rotation is continuously performed. The tubing was flushed and soaked for 30 minutes to allow the scale to dissolve well and the flush flow prevented redeposition.
In a preferred embodiment of the present invention, after the flushing is completed, the opening of the reminder function and the drain function includes: after the self-cleaning is finished, reminding to start a drainage function through the whole machine buzzing of the gas water heater or the mobile equipment APP; and opening the water outlet valve and the total water inlet valve 5, and starting the water pump 2 to accelerate water discharge when water flow is detected. After the water draining function is started for 3 minutes, the operator is reminded to switch the cold water outlet and the hot water outlet through the whole machine buzzing of the gas water heater or the mobile equipment APP. After the water draining function is started for 6 minutes, the operator is reminded to confirm whether the drained water has peculiar smell or not through the whole machine buzzing of the gas water heater or the mobile equipment APP.
In a preferred embodiment of the invention, when the operator confirms that the discharge water is free of bad smell, the outlet valve is closed, after which the circulation line 1 is detected for 10 seconds in succession to shut down the self-cleaning function.
As shown in fig. 3, the operator determines whether detergent is still remained in the water by observing the color of the water, which has been smelled through the nose. A continuous 10s absence of water flow can determine that the water has been emptied. The cleaning operation is ended.
The self-cleaning system of the gas water heater comprises a circulating pipeline 1, a water pump 2, an adding tank 3, a total water inlet valve 5, a controller, a WIFI module and mobile equipment APP. The cleaning system adopts the cleaning method, wherein the mobile device APP stores self-cleaning operation steps. The WIFI module can communicate with the mobile device APP to prompt the current operation procedure. The controller is electrically connected with the WIFI module to indicate the control action of the controller. Self-cleaning can be achieved by adding a descaling agent into the adding tank 3 and then circulating in the circulating pipeline 1 through the water pump 2, the operation is simple, the cleaning cost is reduced, and on-site watching is not needed. The dissolution ratio, the heating temperature and the scouring time can be set and modified by the user. The method meets the scene that users use different detergents, and has strong adaptability.
In embodiments of the present invention, the term "plurality" refers to two or more, unless explicitly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly attached, detachably attached, or integrally attached. The specific meaning of the above terms in the embodiments of the present invention will be understood by those of ordinary skill in the art according to specific circumstances.
In the description of the embodiments of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present invention and to simplify the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the embodiments of the present invention.
In the description of the present specification, the terms "one embodiment," "a preferred embodiment," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention and is not intended to limit the embodiment of the present invention, and various modifications and variations can be made to the embodiment of the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.
Claims (6)
1. A gas water heater self-cleaning method, characterized in that the gas water heater comprises: the gas water heater self-cleaning system, gas water heater self-cleaning system includes: the circulating pipeline (1) comprises a cold-hot conversion pipeline (11) and a cold water pipeline (12) communicated with the cold-hot conversion pipeline (11) through a one-way valve (13), wherein the cold-hot conversion pipeline (11) comprises a cold water side (111) and a hot water side (112) communicated with the cold water side (111), and a cold water outlet and a hot water outlet controlled by a water outlet valve are arranged at the joint of the cold-hot conversion pipeline (11) and the cold water pipeline (12);
a water pump (2) provided on the water intake side of the cold water side (111);
an addition tank (3) which is provided on the water inlet side of the cold water side (111) and communicates with the cold water pipe (12) through an electromagnetic valve (4);
the total water inlet valve (5) is arranged at the water inlet end of the circulating pipeline (1) to control the communication between the circulating pipeline (1) and external water supply;
the controller is used for controlling the one-way valve (13), the water pump (2) and the electromagnetic valve (4);
the WIFI module is arranged in the gas water heater and is electrically connected with the controller; and
the mobile equipment APP is in communication connection with the WIFI module;
the mobile equipment APP is used for setting a dissolution ratio, a dissolution temperature and a scouring soaking time, and is provided with a self-cleaning operation step which is communicated with the WIFI module to realize step operation without on-site duty;
the method comprises the following steps:
closing a main water inlet valve (5) of the gas water heater and opening a one-way valve (13);
adding a descaling agent into the adding tank (3);
starting a self-cleaning function to enable water flow to flow into the adding tank (3) to dissolve the descaling agent, and starting the water pump (2) to enable the descaling agent to circularly flow along with the circulating pipeline (1);
the heating function of the gas water heater is started, and when the temperature of the inlet water reaches the set dissolution temperature, the heating is stopped;
in the scouring soaking time, the water pump (2) is started and stopped at intervals, and the circulating pipeline (1) is scoured and soaked;
after the flushing is finished, starting a reminding function and a drainage function; and
after the water discharge is finished, the water outlet valve is closed, and the self-cleaning function is closed;
wherein: the addition of the detergent to the addition tank (3) comprises:
setting a dissolution ratio in an APP of the mobile device according to the type of the detergent;
calculating the water flow speed by utilizing a water flow sensor arranged in the circulating pipeline (1) of the gas water heater, and further calculating the water storage capacity in the circulating pipeline (1);
calculating the consumption of the dissolving agent according to the dissolution ratio and the water storage amount; and
adding the calculated amount of the dissolving agent to the addition tank (3);
the set dissolution temperature is 60 ℃, and when the water inlet temperature of the gas water heater reaches 60 ℃, the gas water heater stops heating;
the water pump (2) is started for 1 minute to wash the circulating pipeline (1), then the pump is stopped for 1 minute to soak the circulating pipeline (1), and the process is repeated for 30 minutes, so that the scale is fully dissolved and the redeposition is prevented;
after the water draining function is started for 3 minutes, reminding an operator to switch a cold water outlet and a hot water outlet through the whole machine buzzing of the gas water heater or the mobile equipment APP; and
after the water draining function is started for 6 minutes, reminding an operator of confirming whether the drained water has peculiar smell or not through the whole machine buzzing of the gas water heater or the mobile equipment APP;
when the operator confirms that the discharged water has no foreign odor, the water outlet valve is closed, and then no water flow in the circulating pipeline (1) is detected for 10 seconds continuously.
2. Self-cleaning method of a gas water heater according to claim 1, characterized in that closing the main inlet valve (5) of the gas water heater and opening the non-return valve (13) comprises:
before self-cleaning, manually closing a total water inlet valve (5) of the gas water heater to avoid dilution and run-off after adding the detergent; and
opening the check valve (13) so that the circulation line (1) forms a water flow path from the cold-hot converting line (11) to the cold water line (12).
3. Self-cleaning method of a gas water heater according to claim 2, characterized in that after the self-cleaning function of the gas water heater is started, the electromagnetic valve (4) controlling the opening and closing of the adding tank (3) is opened, water flows into the adding tank (3), the descaling agent is dissolved, the water pump (2) in the circulating pipeline (1) is started, so that the water flow in the circulating pipeline (1) circulates, and the descaling agent dissolved in the water flow also circulates.
4. A gas water heater self-cleaning method according to claim 3, characterized in that during self-cleaning the solenoid valve (4) remains fully suction valve, wherein the solenoid valve (4) is run under reduced pressure to reduce the solenoid valve (4) temperature rise.
5. The self-cleaning method of a gas water heater according to claim 4, wherein the electromagnetic valve (4) is a 24V braking electromagnetic valve, the electromagnetic valve (4) is full of a voltage 24V suction valve 5s, then the voltage is reduced and maintained at 15V-18V, and the temperature rise of the electromagnetic valve (4) is reduced.
6. The self-cleaning method of a gas water heater according to claim 5, wherein after the flushing is completed, turning on a reminding function and a water discharging function comprises:
after the self-cleaning is finished, reminding to start a drainage function through the whole machine buzzing of the gas water heater or the mobile equipment APP; and
and opening the water outlet valve and the total water inlet valve (5), and starting the water pump (2) to accelerate water discharge when water flow is detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111076766.4A CN113639460B (en) | 2021-09-14 | 2021-09-14 | Self-cleaning system and self-cleaning method for gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111076766.4A CN113639460B (en) | 2021-09-14 | 2021-09-14 | Self-cleaning system and self-cleaning method for gas water heater |
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| CN103471247B (en) * | 2013-08-29 | 2016-06-15 | 芜湖美的厨卫电器制造有限公司 | Gas heater |
| CN203629029U (en) * | 2013-08-29 | 2014-06-04 | 芜湖美的厨卫电器制造有限公司 | Gas water heater |
| CN103591692B (en) * | 2013-10-31 | 2017-01-04 | 芜湖美的厨卫电器制造有限公司 | Gas heater |
| CN203629045U (en) * | 2013-10-31 | 2014-06-04 | 芜湖美的厨卫电器制造有限公司 | Gas water heater |
| CN210772731U (en) * | 2019-09-25 | 2020-06-16 | 海信(广东)厨卫系统有限公司 | Gas water heater with self-cleaning function |
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