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CN111174276A - Wall-mounted boiler zero-cold-water appointment control method - Google Patents

Wall-mounted boiler zero-cold-water appointment control method Download PDF

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Publication number
CN111174276A
CN111174276A CN201911413381.5A CN201911413381A CN111174276A CN 111174276 A CN111174276 A CN 111174276A CN 201911413381 A CN201911413381 A CN 201911413381A CN 111174276 A CN111174276 A CN 111174276A
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CN
China
Prior art keywords
direct
water pump
wall
water flow
current water
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Pending
Application number
CN201911413381.5A
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Chinese (zh)
Inventor
付胜东
朱嘉宏
张强
王克军
仇明贵
潘叶江
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Vatti Co Ltd
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Vatti Co Ltd
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Priority to CN201911413381.5A priority Critical patent/CN111174276A/en
Publication of CN111174276A publication Critical patent/CN111174276A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
    • F24D19/1069—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water regulation in function of the temperature of the domestic hot water
    • 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

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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)
  • Devices For Medical Bathing And Washing (AREA)

Abstract

The invention discloses a wall-mounted boiler zero-cold-water reservation control method, which comprises the following steps: s1, setting a preheating time for a wall-mounted furnace by a controller; s2, starting the wall-mounted furnace, pressing an instant-heating switch of the wall-mounted furnace to enter an instant-heating mode, judging whether the wall-mounted furnace is in the preheating time by the controller, and executing the step S4 to start timing work when the controller judges that the wall-mounted furnace is in the preheating time; otherwise, executing the step S3; s3, when the controller judges that the wall-mounted furnace is not in the preheating time, the wall-mounted furnace is in a standby state; s4, the controller sets a TIs provided withTemperature of the bath influent, temperature probe determination TIs provided withWhether the temperature is less than or equal to 50 ℃; s5, when the bathing water inlet temperature probe detects TIs provided withIf the temperature is higher than 50 ℃, the controller automatically adjusts TIs provided withAt 50 ℃. After adopting above-mentioned technical scheme, the hanging stove can preheat the water in the domestic water pipeline, realizes that when the user used water demand in the reservation time, it has hot water to open tap, improves and relaxesAnd (6) fitting.

Description

Wall-mounted boiler zero-cold-water appointment control method
Technical Field
The invention relates to the field of kitchenware, in particular to a wall-mounted stove zero-cold-water reservation control method.
Background
When the wall-mounted boiler without the preheating function is used for water, a section of cold water needs to be discharged, and hot water comes out, so that the waste of water resources is caused; this patent proposes a control method, preheats the cold water in the circulating line, when the user has the water demand, opens tap, need not to wait and just has hot water to come out, can not cause the waste of water resource.
Disclosure of Invention
The invention mainly aims to provide a wall-mounted boiler zero-cold-water appointment control method, an appointment mode is started, the wall-mounted boiler can preheat water in a living water pipeline, when a user needs water in an appointment time, a tap is started to obtain hot water, and the comfort is improved.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a wall-mounted boiler zero-cold-water appointment control method is characterized in that a controller is in telecommunication connection with a water flow sensor, a direct-current water pump, a bathing water outlet temperature probe and a bathing water inlet temperature probe, and the control method comprises the following steps:
s1, the controller sets a preheating time for the wall-mounted furnace;
s2, starting the wall-mounted furnace to press an instant-heating switch of the wall-mounted furnace to enter an instant-heating mode, judging whether the wall-mounted furnace is in the preheating time or not by the controller, and executing the step S4 to start timing work when the controller judges that the wall-mounted furnace is in the preheating time; otherwise, executing the step S3;
s3, when the controller judges that the wall-mounted furnace is not in the preheating time, the wall-mounted furnace is in a standby state;
s4, the controller sets a TIs provided withThe temperature of the bath inlet water temperature probe judges TIs provided withWhether the temperature is less than or equal to 50 ℃;
s5, when the bathing water inlet temperature probeDetecting TIs provided withIf the temperature is higher than 50 ℃, the controller automatically adjusts TIs provided with＝50℃。
In the above scheme, after step S4 is completed, when the bathing water inlet temperature probe detects TIs provided with< 50 ℃, proceeding from S5 to the following steps:
s6, starting the direct-current water pump, starting to time the starting time of the direct-current water pump through the controller, and enabling the direct-current water pump to work according to the maximum working condition QmaxWorking;
s7, after the direct-current water pump operates for 5-10s, the water flow sensor judges whether the water flow is more than or equal to 2.5L/min;
s8, when the water flow is less than 2.5L/min, closing the direct-current water pump, and prompting the fault of the direct-current water pump;
and S9, starting a reset key or starting a bathing mode to eliminate the fault prompt of the direct-current water pump.
In the scheme, when the water flow is not less than 2.5L/min, the following steps are continued from the step S7:
s10, the controller sets a TReturn differenceThe direct-current water pump runs for 60s, and the bathing water inlet temperature probe detects the T at the momentIntoWhen temperature of (T)Into＜TIs provided with-TReturn differenceThen proceed to step S11;
s11, continuously operating the direct-current water pump;
s12, the bath water outlet temperature probe detects the T at the momentGo outWhen temperature of (T)Go out＜TIs provided withThen proceed to step S13;
and S13, preheating the wall-mounted furnace, and igniting to operate.
In the above scheme, after step S13 is completed, the following steps are continued:
s14, judging T first after the wall-mounted furnace is on fireGo outWhether the temperature after 5s duration is > TIs provided with+7 ℃, if yes, go to step S15, otherwise go to step S16;
s15, when TGo outIf the temperature is more than T and is more than 7 ℃, the wall-mounted furnace is flamed out, and after the direct-current water pump keeps running for 20s, whether T is detected or not is judgedInto＜TIs provided with-TReturn difference-2 ℃, if yes, go to step S17, otherwise go to step S19;
s16, when TGo outWhen the temperature is less than or equal to T and is less than or equal to 7 ℃, the wall-mounted furnace is continuously ignited for 20s, and T is judgedIntoWhether the temperature after 5s duration is > TIs provided with-TReturn differenceIf yes, go to step S18, otherwise go to step S20;
s17, when TInto＜TIs provided with-TReturn differenceWhen the temperature is below 2 ℃, the direct-current water pump is not closed, the ignition is carried out again, and the step S14 is returned;
s18, when TInto＞TIs provided with-TReturn differenceAnd (3) switching off the wall-mounted boiler, and judging T after the direct-current water pump runs for 1-20 sIntoWhether or not < TIs provided with-TReturn difference-2 ℃, if yes, go to step S19, otherwise go to step S17;
s19, when TInto＜TIs provided with-TReturn differenceSlowly closing the direct-current water pump 5s at the temperature of-2 ℃, and calculating the closing time of the direct-current water pump by the controller;
s20, when TInto≤TIs provided with-TReturn differencewhen the water flow is larger than or equal to 5-8L, judging whether the water flow rising within 10s is larger than the program mutation flow △ L (default 1L/min);
and S21, when the flow rate of the water flow rising in 10s is larger than the program mutation flow rate △ L (default 1L/min), closing the direct-current water pump.
In the above scheme, after step S19 is completed, the following steps are continued:
s22, after the direct-current water pump is turned off for 6s, judging whether the water flow is larger than or equal to the starting water flow; if yes, go to step S23, otherwise go to step S24;
s23, when the water flow is larger than or equal to the starting water flow, switching to a common shower state, and shielding an appointment function;
s24, when the water flow is smaller than the starting water flow, judging whether the water flow exceeds the reserved time, if so, returning to the step S3, otherwise, entering the step S25;
s25, when the reserved time is not exceeded, the direct-current water pump is closed, and after 1min, T is judgedIntoWhether or not < TIs provided with-TReturn difference-2 ℃; if yes, returning to the step S6, otherwise, entering the step S26;
s26, when TInto≥TIs provided with-TReturn differenceAnd (4) judging whether the direct-current water pump is closed for 10min at the temperature of-2 ℃, if so, returning to the step S6, and otherwise, returning to the step S22.
9. In the above scheme, after step S21 is completed, the following steps are continued:
s27, after the direct-current water pump is turned off, judging whether the water flow is larger than or equal to the starting water flow, if so, entering a step S23, otherwise, entering a step S24; after step S23, proceed to step S28;
and S28, ending the shower, and returning to the step S24 to judge whether the reserved time is exceeded.
10. In the above scheme, after step S20 is completed, the following steps are continued:
s29, when the water flow rate rising within 10S is smaller than or equal to the program mutation flow quantity △ L (default 1L/min), judging whether the direct-current water pump is operated for 10min, if so, entering a step S30, otherwise, entering a step S31;
s30, after the direct-current water pump continuously operates for 10min, slowly closing the direct-current water pump within 5 s;
s31, when the direct-current water pump does not continuously run for 10min, judging whether the water flow is more than or equal to 2L/min, if so, returning to the step S14, otherwise, advancing to the step S34;
s32, after the step S30 is completed, the direct-current water pump is turned off for timing and the step S33 is carried out;
s33, the direct-current water pump is forcibly closed, within 10min, the water flow sensor judges whether a water flow signal exists, if yes, the step S23 is advanced, and if not, the step S24 is executed;
s34, when the water flow is less than 2L/min, extinguishing the wall-mounted furnace, keeping the direct-current water pump running for 5min, judging whether the water flow is more than or equal to 2.5L/min, if so, entering the step S35, otherwise, returning to the step S8;
s35, when the water flow is larger than or equal to 2.5L/min, igniting the wall-hanging stove and starting up the wall-hanging stove to operate, and entering step S14.
In the scheme, when the shower bath is in a shower state, the water flow is more than or equal to the starting water flow, and the instant heating function is shielded; when in the shower state, the water flow rate < startup water flow rate, return to step S3.
In the scheme, the wall-mounted furnace also has a heating mode.
In the above scheme, when step S26 is completed, the direct current water pump may be switched to the heating mode for 10min within 10min of turning off the direct current water pump according to the requirement of the customer, and then the process proceeds to step S24; when the step S33 is completed, the dc water pump may be switched to the heating mode for 10min according to the customer' S requirement within 10min of turning off the dc water pump, and then the process proceeds to step S24.
After adopting above-mentioned technical scheme, opening the reservation mode, the hanging stove can preheat the water in the domestic water pipeline, realizes that the user when the water demand in the reservation time, opens tap and has hot water, improves the travelling comfort. And when the preset temperature is higher than 50 ℃, the temperature is automatically adjusted to 50 ℃, so that the product is prevented from being scalded when being used for boiling water suddenly and at a higher temperature in the preheating process.
Drawings
FIG. 1 is a first schematic structural diagram of the present invention;
fig. 2 is a first schematic diagram of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown with reference to figures 1 and 2,
the controller 1 is in telecommunication connection with a water flow sensor 2, a direct-current water pump 3, a bathing water outlet temperature probe 4 and a bathing water inlet temperature probe 5, the water flow sensor 2 is used for detecting water flow, the direct-current water pump 3 is used for pumping water, and the bathing water outlet temperature probe 4 is used for detecting TGo outTemperature and bathing water inlet temperature probe 5 for detecting TIntoAnd (3) temperature.
The wall-mounted boiler zero-cold-water appointment control method comprises the following steps:
s1, the controller 1 sets a preheating time for the wall-mounted furnace;
s2, starting the wall-mounted furnace to press an instant-heating switch of the wall-mounted furnace to enter an instant-heating mode, judging whether the wall-mounted furnace is in the preheating time by the controller 1, and executing the step S4 to start timing work when the controller 1 judges that the wall-mounted furnace is in the preheating time; otherwise, executing the step S3;
s3, when the controller 1 judges that the wall-mounted boiler is not in the preheating time, the wall-mounted boiler is in a standby state;
s4, the controller 1 sets a TIs provided withThe temperature of the bath inlet water is judged to be T by the temperature probe 5Is provided withWhether the temperature is less than or equal to 50 ℃;
s5, when the bathing water inlet temperature probe 5 detects TIs provided withIf the temperature is higher than 50 ℃, the controller 1 automatically adjusts TIs provided with＝50℃。
After step S4 is completed, when the bathing water inlet temperature probe 5 detects TIs provided with< 50 ℃, proceeding from S5 to the following steps:
s6, starting the direct-current water pump 3, starting to time the starting time of the direct-current water pump 3 through the controller 1, and enabling the direct-current water pump 3 to work according to the maximum working condition QmaxWorking;
s7, after the direct-current water pump 3 operates for 5-10s, the water flow sensor 2 judges whether the water flow is more than or equal to 2.5L/min;
s8, when the water flow is less than 2.5L/min, closing the direct-current water pump 3, and prompting the fault of the direct-current water pump 3;
and S9, starting a reset key or starting a bathing mode to eliminate the fault prompt of the direct-current water pump 3.
When the water flow is not less than 2.5L/min, the following steps are continued from the step S7:
s10, the controller 1 sets a TReturn differenceOr THeat preservation，TReturn differenceAnd THeat preservationEquivalently, the direct current pump 3 runs for 60s, and the bathing inlet water temperature probe 5 detects the T at the momentIntoWhen temperature of (T)Into＜TIs provided with-TReturn differenceThen proceed to step S11;
s11, the direct-current water pump 3 continuously operates;
s12, the bath water outlet temperature probe 4 detects T at the timeGo outWhen temperature of (T)Go out＜TIs provided withThen proceed to step S13;
and S13, preheating the wall-mounted furnace, and igniting to operate.
After completion of step S13, the following steps are continued:
s14, judging T first after the wall-mounted furnace is on fireGo outWhether the temperature after 5s duration is > TIs provided with+7 ℃, if yes, go to step S15, otherwise go to step S16;
s15, when TGo outIf the temperature is more than T and is more than 7 ℃, the wall-mounted furnace is flamed out, and after the direct-current water pump 3 keeps running for 20s, whether T is detected or not is judgedInto＜TIs provided with-TReturn difference-2 ℃, if yes, go to step S17, otherwise go to step S19;
s16, when TGo outWhen the temperature is less than or equal to T and is less than or equal to 7 ℃, the wall-mounted furnace is continuously ignited for 20s, and T is judgedIntoWhether the temperature after 5s duration is > TIs provided with-TReturn differenceIf yes, go to step S18, otherwise go to step S20;
s17, when TInto＜TIs provided with-TReturn differenceWhen the temperature is below 2 ℃, the direct-current water pump 3 is not turned off, the ignition is carried out again, and the step S14 is returned;
s18, when TInto＞TIs provided with-TReturn differenceAnd (3) switching off the wall-mounted boiler, and judging T after the direct-current water pump runs for 1-20 sIntoWhether or not < TIs provided with-TReturn difference-2 ℃, if yes, go to step S19, otherwise go to step S17;
s19, when TInto＜TIs provided with-TReturn differenceSlowly turning off the direct-current water pump 3 within five seconds at the temperature of-2 ℃, and calculating the turning-off time of the direct-current water pump 3 by the controller 1;
s20, when TInto≤TIs provided with-TReturn differencewhen the water flow is larger than or equal to 5-8L, judging whether the water flow rising within 10s is larger than the program mutation flow △ L (default 1L/min);
and S21, when the flow rate of the water flow rising in 10s is larger than the program mutation flow rate △ L (default 1L/min), closing the direct-current water pump 3.
After completion of step S19, the following steps are continued:
s22, after the direct-current water pump is turned off for 6s, judging whether the water flow is larger than or equal to the starting water flow; if yes, go to step S23, otherwise go to step S24;
s23, when the water flow is larger than or equal to the starting water flow, switching to a common shower state, and shielding an appointment function;
s24, when the water flow is smaller than the starting water flow, judging whether the water flow exceeds the reserved time, if so, returning to the step S3, otherwise, entering the step S25;
s25, when the reserved time is not exceeded, the direct-current water pump is closed for 3 min, and T is judged after 1minIntoWhether or not < TIs provided with-TReturn difference-2 ℃; if yes, returning to the step S6, otherwise, entering the step S26;
s26, when TInto≥TIs provided with-TReturn differenceAnd (4) judging whether the direct-current water pump 3 is closed for 10min at the temperature of-2 ℃, if so, returning to the step S6, otherwise, returning to the step S22.
After completion of step S21, the following steps are continued:
s27, after the direct-current water pump 3 is turned off, judging whether the water flow is larger than or equal to the starting water flow, if so, entering a step S23, otherwise, entering a step S24; after step S23, proceed to step S28;
and S28, ending the shower, and returning to the step S24 to judge whether the reserved time is exceeded.
After completion of step S20, the following steps are continued:
s29, when the water flow quantity rising within 10S is smaller than or equal to the program mutation flow quantity △ L (default 1L/min), judging whether the direct-current water pump 3 is in connection with operation for 10min, if so, entering a step S30, otherwise, entering a step S31;
s30, after the direct-current water pump 3 continuously operates for 10min, slowly closing the direct-current water pump 3 within 5 s;
s31, when the direct-current water pump 3 does not continuously operate for 10min, judging whether the water flow is more than or equal to 2L/min, if so, returning to the step S14, otherwise, advancing to the step S34;
s32, after the step S30 is completed, the direct current water pump 3 is turned off for timing and the step S33 is carried out;
s33, forcibly closing the direct-current water pump 3, judging whether a water flow signal exists within 10min by the water flow sensor 2, if so, advancing to the step S23, otherwise, entering the step S24;
s34, when the water flow is less than 2L/min, extinguishing the wall-mounted furnace, keeping the direct-current water pump 3 running for 5min, judging whether the water flow is more than or equal to 2.5L/min, if so, entering the step S35, otherwise, returning to the step S8;
s35, when the water flow is larger than or equal to 2.5L/min, igniting the wall-hanging stove and starting up the wall-hanging stove to operate, and entering step S14.
When the shower bath is in a shower state, the water flow is more than or equal to the starting water flow, and the instant heating function is shielded; when in the shower state, the water flow rate < startup water flow rate, return to step S3.
The wall-hanging stove also has the heating mode.
When the step S26 is completed, the dc water pump 3 may be switched to the heating mode for 10min within 10min of turning off, and then the process proceeds to step S24; when the step S33 is completed, the dc water pump 310min is switched to the heating mode for 10min according to the customer' S requirement, and then the process proceeds to step S24.
When the appointment mode is started, the wall-mounted boiler can preheat water in the living water pipeline, so that when a user needs water in the appointment time, hot water can be obtained by starting the faucet, and the comfort is improved; when the preset temperature is higher than 50 ℃ in the steps S4-S5, the temperature is automatically adjusted to 50 ℃, and the situation that the fireplace is used for suddenly boiling water and scalding due to high temperature in the preheating process is prevented. The wall-hanging stove may be flameout twice at steps S14-S19 so as to ensure that the heated water avoids scalding hands. In the steps S7-S9, the direct current pump 3 displays a warning for trouble, so that the user can know that the water flow is too low, the fireplace is prevented from being dried, and the user can switch the bathing mode to remove the trouble or press a reset key to remove the trouble. In the preheating time, if the bathing mode is started, the initial water is hot water, and then the instant heating mode is closed to be changed into the common bathing mode. In steps S33 and S26, the dc water pump 3 may be turned off, and the heating mode may be switched. The wall-mounted furnace zero-cold-water reservation control method has multiple modes, is convenient for users to select, and improves user experience.
The above examples are intended to illustrate rather than to limit the invention, and all equivalent changes and modifications made by the methods described in the claims of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The wall-mounted boiler zero-cold-water appointment control method is characterized in that a controller (1) is in telecommunication connection with a water flow sensor (2), a direct-current water pump (3), a bathing water outlet temperature probe (4) and a bathing water inlet temperature probe (5), and the control method comprises the following steps:
s1, the controller (1) sets a preheating time for the wall-mounted furnace;
s2, starting the wall-mounted furnace to press an instant heating switch thereof to enter an instant heating mode, judging whether the wall-mounted furnace is in the preheating time by the controller (1), and executing the step S4 to start timing work when the controller (1) judges that the wall-mounted furnace is in the preheating time; otherwise, executing the step S3;
s3, when the controller (1) judges that the wall-mounted furnace is not in the preheating time, the wall-mounted furnace is in a standby state;
s4, the controller (1) sets a TIs provided withThe temperature of the bath inlet water temperature probe (5) judges TIs provided withWhether the temperature is less than or equal to 50 ℃;
s5, when the bathing water inlet temperature probe (5) detects TIs provided withIf the temperature is higher than 50 ℃, the controller (1) automatically adjusts TIs provided with＝50℃。
2. A control method according to claim 1, characterized in that after step S4, when said bathing inlet water temperature probe (5) detects TIs provided with< 50 ℃, proceeding from S5 to the following steps:
s6, starting the direct-current water pump (3), starting to time the starting time of the direct-current water pump (3) through the controller (1), and enabling the direct-current water pump (3) to work according to the maximum working condition QmaxWorking;
s7, after the direct-current water pump (3) operates for 5-10s, the water flow sensor (2) judges whether the water flow is more than or equal to 2.5L/min;
s8, when the water flow is less than 2.5L/min, closing the direct-current water pump (3), and prompting the fault of the direct-current water pump (3);
and S9, starting a reset key or starting a bathing mode to eliminate the fault prompt of the direct-current water pump (3).
3. A control method according to claim 2, wherein when the water flow rate is not less than 2.5L/min, the following steps are continued from step S7:
s10, the controller (1) sets a TReturn differenceThe direct-current water pump (3) runs for 60s, and the bathing water inlet temperature probe (5) detects T at the momentIntoWhen temperature of (T)Into＜TIs provided with-TReturn differenceThen proceed to step S11;
s11, the direct-current water pump (3) continuously operates;
s12, the bath water outlet temperature probe (4) detects T at the timeGo outWhen temperature of (T)Go out＜TIs provided withThen proceed to step S13;
and S13, preheating the wall-mounted furnace, and igniting to operate.
4. A control method according to claim 3, characterized in that after step S13 is completed, the following steps are continued:
s14, judging T first after the wall-mounted furnace is on fireGo outWhether the temperature after 5s duration is > TIs provided with+7 ℃, if yes, go to step S15, otherwise go to step S16;
s15, when TGo outIf the temperature is more than T and +7 ℃, the wall-mounted furnace is flamed out, and after the direct-current water pump (3) keeps running for 20s, whether T is detected or not is judgedInto＜TIs provided with-TReturn difference-2 ℃, if yes, go to step S17, otherwise go to step S19;
s16, when TGo outWhen the temperature is less than or equal to T and is less than or equal to 7 ℃, the wall-mounted furnace is continuously ignited for 20s, and T is judgedIntoWhether the temperature after 5s duration is > TIs provided with-TReturn differenceIf yes, go to step S18, otherwise go to step S20;
s17, when TInto＜TIs provided with-TReturn differenceAt-2 ℃, the direct-current water pump (3) is not closed, and the weight is highNewly igniting, and returning to the step S14;
s18, when TInto＞TIs provided with-TReturn differenceAnd (3) switching off the wall-mounted boiler, and judging T after the direct-current water pump runs for 1-20 sIntoWhether or not < TIs provided with-TReturn difference-2 ℃, if yes, go to step S19, otherwise go to step S17;
s19, when TInto＜TIs provided with-TReturn difference-slowly shutting down said dc water pump (3) within 5s at 2 ℃, said controller (1) calculating a shut down time of said dc water pump (3);
s20, when TInto≤TIs provided with-TReturn differencewhen the water flow is larger than or equal to 5-8L, judging whether the water flow rising within 10s is larger than the program mutation flow △ L (default 1L/min);
and S21, when the flow rate of the water flow rising in 10s is larger than the program mutation flow rate △ L (default 1L/min), closing the direct-current water pump (3).
5. A control method according to claim 4, characterized in that after step S19 is completed, the following steps are continued:
s22, after the direct-current water pump is turned off for 6s, judging whether the water flow is larger than or equal to the starting water flow; if yes, go to step S23, otherwise go to step S24;
s23, when the water flow is larger than or equal to the starting water flow, switching to a common shower state, and shielding an appointment function;
s24, when the water flow is smaller than the starting water flow, judging whether the water flow exceeds the reserved time, if so, returning to the step S3, otherwise, entering the step S25;
s25, when the reserved time is not exceeded, the direct-current water pump (3) is closed, and after 1min, T is judgedIntoWhether or not < TIs provided with-TReturn difference-2 ℃; if yes, returning to the step S6, otherwise, entering the step S26;
s26, when TInto≥TIs provided with-TReturn differenceAnd (4) judging whether the direct-current water pump (3) is closed for 10min at the temperature of-2 ℃, if so, returning to the step S6, otherwise, returning to the step S22.
6. A control method according to claim 5, characterized in that after step S21 is completed, the following steps are continued:
s27, after the direct-current water pump (3) is turned off, judging whether the water flow is larger than or equal to the starting water flow, if so, entering a step S23, otherwise, entering a step S24; after step S23, proceed to step S28;
and S28, ending the shower, and returning to the step S24 to judge whether the reserved time is exceeded.
7. A control method according to claim 6, characterized in that after step S20 is completed, the following steps are continued:
s29, when the water flow rising within 10S is smaller than or equal to the program mutation flow △ L (default 1L/min), judging whether the direct-current water pump (3) is operated for 10min, if so, entering a step S30, otherwise, entering a step S31;
s30, after the direct-current water pump (3) continuously operates for 10min, slowly closing the direct-current water pump (3) within 5 s;
s31, when the direct-current water pump (3) does not continuously operate for 10min, judging whether the water flow is more than or equal to 2L/min, if so, returning to the step S14, otherwise, advancing to the step S34;
s32, after the step S30 is completed, the direct-current water pump (3) is turned off for timing and the step S33 is carried out;
s33, the direct-current water pump (3) is forcibly closed, within 10min, the water flow sensor (2) judges whether a water flow signal exists, if so, the step S23 is advanced, otherwise, the step S24 is executed;
s34, when the water flow is less than 2L/min, extinguishing the wall-mounted furnace, keeping the direct-current water pump (3) running for 5min, judging whether the water flow is more than or equal to 2.5L/min, if so, entering the step S35, otherwise, returning to the step S8;
s35, when the water flow is larger than or equal to 2.5L/min, igniting the wall-hanging stove and starting up the wall-hanging stove to operate, and entering step S14.
8. A control mode according to any one of claims 1 to 7, characterized in that when in a shower state, the water flow rate is more than or equal to the starting water flow rate, and the shielding instant heating function is realized; when in the shower state, the water flow rate < startup water flow rate, return to step S3.
9. A control as claimed in claim 8 wherein the wall-hanging stove also has a heating mode.
10. A control method according to claim 9, characterized in that, when step S26 is completed, the dc water pump (3) is switched to the heating mode for 10min within 10min after being turned off, and then the method proceeds to step S24; when the step S33 is completed, the direct current water pump (3) is switched to the heating mode for 10min within 10min of being closed, and then the operation proceeds to the step S24.
CN201911413381.5A 2019-12-31 2019-12-31 Wall-mounted boiler zero-cold-water appointment control method Pending CN111174276A (en)

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Application publication date: 20200519