CN105605794A - Sequential control method for rapidly starting forced-exhausting gas water heater - Google Patents
Sequential control method for rapidly starting forced-exhausting gas water heater Download PDFInfo
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- CN105605794A CN105605794A CN201610096336.1A CN201610096336A CN105605794A CN 105605794 A CN105605794 A CN 105605794A CN 201610096336 A CN201610096336 A CN 201610096336A CN 105605794 A CN105605794 A CN 105605794A
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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)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
The invention discloses a sequential control method for rapidly starting a forced-exhausting gas water heater. The sequential control method includes the following steps that A, the water heater is powered on; B, pre-cleaning is carried out, wherein a draught fan rotates at a high speed; C, the rotating time T of the draught fan is detected, and if T is larger than T1, the method proceeds to the next step; D, whether a water flow switch is operated or not is detected, the water heater directly gets into the rapid starting mode if the water flow switch is operated, and the method proceeds to the next step if the water flow switch is not operated; E, the rotating time T of the draught fan continues to be detected, and if T is larger than T2, the water heater gets into the standby state. According to the sequential control method, pre-cleaning which is originally conducted after the water flow switch is operated is conducted after a power switch of the water heater is switched on; as the process from powering to opening of a faucet is completely sufficient for replacing gas inside the water heater, the amount of leaked gas is quite small in a certain period of time, and the lower limit of the gas detonation concentration can not be achieved; in this way, when the water flow switch of the water heater is operated, the water heater can be rapidly ignited, the starting time of the water heater can be shortened, and sudden increasing and sudden reducing of the temperature of water are avoided, and the use comfort of a user is improved.
Description
Technical field
The present invention relates to gas instantaneous water heater, the sequential control method that especially a kind of strong suction gas water heater starts fast.
Background technology
In prior art, water heater start-up routine is: power connection; Master control borad detects water-flow signal; Water heater self-inspection, check that whether each switch is in normal position; Front cleaning, fan starting also run up; After the front cleaning several seconds, whether closedly detect blast switch; Controller starts electric discharge, time delay 0.2 second, and magnetic valve is opened, and proportioning valve is opened, blower motor low speed or stop power supply
In above program, the main purpose of front cleaning, is to remove water heater inside, thereby due to the residual fuel gas of the trickle gas leakage of long time integration, ensures water heater normal ignition, avoids detonation. As long as front cleaning time and the Water heater igniting time interval are not long, in water heater, the gas quantity of accumulation is few, occurs detonation just can not light a fire time.
Combustion gas detonation needs finite concentration, before not reaching this concentration limit, even if naked light igniting can not cause combustion gas detonation yet.
Summary of the invention
For solving the problems of the technologies described above, the object of this invention is to provide the sequential control method that a kind of strong suction gas water heater starts fast.
The technical solution used in the present invention is:
The sequential control method that strong suction gas water heater starts fast, comprises the following steps (A) water heater power supply and opens; (B) front cleaning: blower fan high speed rotating; (C) detect blower fan rotation time T, if T > T1 enters next step, otherwise continue to detect, wherein, T1 is the front cleaning shortest time threshold value of setting; (D) detect water flow switch and whether move, if action directly enters quick start-up mode, otherwise enter next step; (E) continue to detect blower fan rotation time T, if T > T2 enters holding state, continue to detect otherwise return to previous step, wherein, T2 is the front the longest threshold value of cleaning time of setting.
In described step (E), under holding state, comprise the following steps: (E1) detect water flow switch and whether move, if action enters next step, otherwise continue to detect; (E2) judge current start cleaning before action moment and last time or clean afterwards between time T whether be less than T3, if T < T3 directly enters quick start-up mode, otherwise enter normal startup mode, wherein, T3 is the safety time interval that does not need cleaning under holding state.
In described step (E2), normal startup mode comprises (E21) front cleaning: the blower fan high speed rotating T4 time, discharge water heater internal gas; (E22) detect that motor normal rotation reaches desired speed or whether blast switch is closed, if be closed into next step, otherwise stop blower fan after the T5 time; (E23) control impuls igniter electric discharge, after time delay a period of time, controls magnetic valve and proportioning valve and opens, and control blower fan low cruise or stop power supply; (E24) detect in burner whether have flame, if there is flame to enter next step, otherwise shut electromagnetic valve discharges with proportioning valve, stop pulse igniter while exceeding flame detection time; (E25) stop pulse igniter electric discharge; (E26) water heater normal regulating export hot water; (E27) detect water-flow signal and whether close, enter next step if close, otherwise return to step (E25); (E28) cleaning after, shut electromagnetic valve and proportioning valve, blower fan runs up after the T4 time and has stopped rear cleaning; (E29) return to holding state; Described quick start-up mode comprises: blower fan rotates at full speed, (E22) ~ (E29) step that then directly enters normal startup mode.
Described step (E26) and (E27) between be provided with water heater working state-detection link; this link comprises that detecting inductive needle has one-way conduction and whether closed in closure state, blast switch without short circuit, temperature protection switch with metal around; if water heater working state-detection link normally enters step (E27), otherwise shut electromagnetic valve and proportioning valve.
In described step (E24) and water heater working state-detection link after shut electromagnetic valve and proportioning valve, after detecting that water flow switch is closed, through after return to holding state after cleaning.
Between described step (A) and step (B), be provided with self-inspection link; this self-inspection link comprise detect inductive needle and metal around without short circuit, magnetic valve and proportioning valve without opening circuit, temperature protection switch in closure state, temp probe resistance in normal condition, blast switch in off-state; if self-inspection link normally enters step (B), otherwise detect show after failure code, through after return to holding state behind cleaning and water-flow signal pass.
Beneficial effect of the present invention:
The present invention is by the front cleaning after original water flow switch action, advance to after water heater power supply switch opens, because user is in the time that reality is used, from electric power starting to this process of tap of fetching boiling water, generally all to experience certain hour, if during this period of time open gas heater air exhauster, completely enough water heater internal gas is changed, within a certain period of time, the gas quantity leaking is little, do not reach combustion gas detonation concentration limit, like this, when flow switch of water heater action, water heater just can rapid-ignition reduces water heater start-up time, avoid the water temperature rapid drawdown that rises sharply, promote user's comfort.
Brief description of the drawings
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further.
Fig. 1 is the main flow chart that the strong suction gas water heater of the present invention starts fast;
Fig. 2 is the secondary flow chart of holding state that the strong suction gas water heater of the present invention starts fast.
Detailed description of the invention
Creation design of the present invention is: by the front cleaning after original water flow switch action, advance to after water heater power supply switch opens, because user is in the time that reality is used, from electric power starting to this process of tap of fetching boiling water, generally all to experience certain hour, if during this period of time open gas heater air exhauster, completely enough water heater internal gas is changed, within a certain period of time, the gas quantity leaking is little, do not reach combustion gas detonation concentration limit, like this, when flow switch of water heater action, water heater just can rapid-ignition reduces water heater start-up time, avoid the water temperature rapid drawdown that rises sharply, promote user's comfort.
As shown in Figure 1, the sequential control method that a kind of strong suction gas water heater of the present invention starts fast, comprises the following steps:
(A) water heater power supply is opened;
Self-inspection link; this self-inspection link comprise detect inductive needle and metal around without short circuit, magnetic valve and proportioning valve without opening circuit, temperature protection switch in closure state, temp probe resistance in normal condition, blast switch in off-state; if self-inspection link normally enters step (B), otherwise detect show after failure code, through after return to holding state behind cleaning and water-flow signal pass.
(B) front cleaning: blower fan high speed rotating;
(C) detect blower fan rotation time T, if T > T1 enters next step, otherwise continue to detect, wherein, T1 is the front cleaning shortest time threshold value (as 3 seconds) of setting;
(D) detect water flow switch and whether move, if action directly enters quick start-up mode, otherwise enter next step;
(E) continue to detect blower fan rotation time T, if T > T2 enters holding state, continue to detect otherwise return to previous step, wherein, T2 is the longest threshold value of front cleaning time (10-20 second) of setting.
Shown in Fig. 2, in step (E), under holding state, comprise the following steps:
(E1) detect water flow switch and whether move, if action enters next step, otherwise continue to detect;
Repeat aforementioned self-inspection link; comprise detect inductive needle and metal around without short circuit, magnetic valve and proportioning valve without opening circuit, temperature protection switch in closure state, temp probe resistance in normal condition, blast switch in off-state; if self-inspection link normally enters step (B), otherwise detect show after failure code, through after return to holding state behind cleaning and water-flow signal pass.
(E2) judge current start cleaning before action moment and last time or clean afterwards between time T whether be less than T3, if T < T3 directly enters quick start-up mode, otherwise enter normal startup mode, wherein, T3 is the safety time interval (as 20 minutes) that does not need cleaning under holding state.
In step (E2), normal startup mode comprises:
(E21) front cleaning: the blower fan high speed rotating T4 time, discharge water heater internal gas;
(E22) detect that motor normal rotation reaches desired speed or whether blast switch is closed, if be closed into next step, otherwise stop blower fan after the T5 time;
(E23) control impuls igniter electric discharge, after time delay a period of time, controls magnetic valve and proportioning valve and opens, and control blower fan low cruise or stop power supply;
(E24) detect in burner whether have flame, if there is flame to enter next step, otherwise shut electromagnetic valve discharges with proportioning valve, stop pulse igniter while exceeding flame detection time;
(E25) stop pulse igniter electric discharge;
(E26) water heater normal regulating export hot water;
Herein; also comprise water heater working state-detection link; this link comprises that detecting inductive needle has one-way conduction and whether closed in closure state, blast switch without short circuit, temperature protection switch with metal around; if water heater working state-detection link normally enters step (E27), otherwise shut electromagnetic valve and proportioning valve.
(E27) detect water-flow signal and whether close, enter next step if close, otherwise return to step (E25);
(E28) cleaning after, shut electromagnetic valve and proportioning valve, blower fan runs up after the T4 time and has stopped rear cleaning;
(E29) return to holding state;
Wherein, start-up mode comprises fast: blower fan rotates at full speed, (E22) ~ (E29) step that then directly enters normal startup mode.
In above-mentioned steps (E24) and water heater working state-detection link after shut electromagnetic valve and proportioning valve, after detecting that water flow switch is closed, through after return to holding state after cleaning.
As mentioned above, can find out that innovative point of the present invention is the quick startup of following three kinds of states:
(1), after water heater power supply is connected, start immediately long period cleaning (cleaning after being exactly in fact, 10 to 20 seconds), as long as after the cleaning of 3 seconds (T1) left and right, user opens water supply of water heater switch, water heater is lighted a fire immediately, no longer carry out front cleaning, shorten the available machine time;
(2) if after power connection, above-mentioned cleaning process user does not open water supply of water heater switch, and water heater is in holding state, (consider 20 minutes) within a certain period of time, user opens water supply of water heater switch, and water heater is lighted a fire immediately, no longer carry out front cleaning, shorten the available machine time;
(3) in user's use procedure, close water midway, (consider 20 minutes) within a certain period of time, user opens water supply of water heater switch, and water heater is lighted a fire immediately, no longer carries out front cleaning, shortens the available machine time.
The foregoing is only preferential embodiment of the present invention, the present invention is not limited to above-mentioned embodiment, as long as within the technical scheme that realizes the object of the invention with basic identical means all belongs to protection scope of the present invention.
Claims (6)
1. the sequential control method that strong suction gas water heater starts fast, is characterized in that: comprise the following steps (A) water heater power supply and open; (B) front cleaning: blower fan high speed rotating; (C) detect blower fan rotation time T, if T > T1 enters next step, otherwise continue to detect, wherein, T1 is the front cleaning shortest time threshold value of setting; (D) detect water flow switch and whether move, if action directly enters quick start-up mode, otherwise enter next step; (E) continue to detect blower fan rotation time T, if T > T2 enters holding state, continue to detect otherwise return to previous step, wherein, T2 is the front the longest threshold value of cleaning time of setting.
2. the sequential control method that a kind of strong suction gas water heater starts fast according to claim 1, it is characterized in that: in described step (E), under holding state, comprise the following steps: (E1) detect water flow switch and whether move, if action enters next step, otherwise continue to detect; (E2) judge current start cleaning before action moment and last time or clean afterwards between time T whether be less than T3, if T < T3 directly enters quick start-up mode, otherwise enter normal startup mode, wherein, T3 is the safety time interval that does not need cleaning under holding state.
3. the sequential control method that a kind of strong suction gas water heater starts fast according to claim 2, it is characterized in that: in described step (E2), normal startup mode comprises (E21) front cleaning: the blower fan high speed rotating T4 time, discharge water heater internal gas; (E22) detect that motor normal rotation reaches desired speed or whether blast switch is closed, if be closed into next step, otherwise stop blower fan after the T5 time; (E23) control impuls igniter electric discharge, after time delay a period of time, controls magnetic valve and proportioning valve and opens, and control blower fan low cruise or stop power supply; (E24) detect in burner whether have flame, if there is flame to enter next step, otherwise shut electromagnetic valve discharges with proportioning valve, stop pulse igniter while exceeding flame detection time; (E25) stop pulse igniter electric discharge; (E26) water heater normal regulating export hot water; (E27) detect water-flow signal and whether close, enter next step if close, otherwise return to step (E25); (E28) cleaning after, shut electromagnetic valve and proportioning valve, blower fan runs up after the T4 time and has stopped rear cleaning; (E29) return to holding state; Described quick start-up mode comprises: blower fan rotates at full speed, (E22) ~ (E29) step that then directly enters normal startup mode.
4. the sequential control method that a kind of strong suction gas water heater starts fast according to claim 3; it is characterized in that: described step (E26) and (E27) between be provided with water heater working state-detection link; this link comprises that detecting inductive needle has one-way conduction and whether closed in closure state, blast switch without short circuit, temperature protection switch with metal around; if water heater working state-detection link normally enters step (E27), otherwise shut electromagnetic valve and proportioning valve.
5. the sequential control method that a kind of strong suction gas water heater starts fast according to claim 4, it is characterized in that: in described step (E24) and water heater working state-detection link after shut electromagnetic valve and proportioning valve, after detecting that water flow switch is closed, through after cleaning after return to holding state.
6. the sequential control method that a kind of strong suction gas water heater starts fast according to claim 1, it is characterized in that: between described step (A) and step (B), be provided with self-inspection link, this self-inspection link comprise detect inductive needle with metal around without short circuit, magnetic valve and proportioning valve are without opening circuit, temperature protection switch is in closure state, temp probe resistance is in normal condition, blast switch is in off-state, if self-inspection link normally enters step (B), otherwise detect and show after failure code, through after cleaning with water-flow signal close after return to holding state.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610096336.1A CN105605794B (en) | 2016-02-22 | 2016-02-22 | The sequential control method that a kind of strong suction gas water heater quickly starts |
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| CN201610096336.1A CN105605794B (en) | 2016-02-22 | 2016-02-22 | The sequential control method that a kind of strong suction gas water heater quickly starts |
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| CN105605794A true CN105605794A (en) | 2016-05-25 |
| CN105605794B CN105605794B (en) | 2018-07-06 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014088A (en) * | 2017-04-13 | 2017-08-04 | 珠海格力电器股份有限公司 | Ignition protection method and system for gas water heater |
| CN110398051A (en) * | 2019-06-25 | 2019-11-01 | 华帝股份有限公司 | Control method of gas water heater and gas water heater |
| CN112178939A (en) * | 2019-07-05 | 2021-01-05 | 芜湖美的厨卫电器制造有限公司 | Water heating method and device |
| CN114508860A (en) * | 2022-01-05 | 2022-05-17 | 万家乐热能科技有限公司 | Control method of gas heating water heater |
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| JP2002257339A (en) * | 2001-02-27 | 2002-09-11 | Inkusu Kk | Combustion safety controller |
| CN102748866A (en) * | 2012-07-11 | 2012-10-24 | 中山市超人电器有限公司 | Control method of automatic constant temperature gas water heater with electric fan smoke emission |
| CN203052808U (en) * | 2012-12-25 | 2013-07-10 | 福州斯狄渢电热水器有限公司 | Hybrid-energy remote-intelligent-control heating system |
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- 2016-02-22 CN CN201610096336.1A patent/CN105605794B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20020050490A1 (en) * | 2000-06-30 | 2002-05-02 | Robert Pittman | Water heater |
| JP2002257339A (en) * | 2001-02-27 | 2002-09-11 | Inkusu Kk | Combustion safety controller |
| CN102748866A (en) * | 2012-07-11 | 2012-10-24 | 中山市超人电器有限公司 | Control method of automatic constant temperature gas water heater with electric fan smoke emission |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014088A (en) * | 2017-04-13 | 2017-08-04 | 珠海格力电器股份有限公司 | Ignition protection method and system for gas water heater |
| CN107014088B (en) * | 2017-04-13 | 2021-11-23 | 珠海格力电器股份有限公司 | Ignition protection method and system for gas water heater |
| CN110398051A (en) * | 2019-06-25 | 2019-11-01 | 华帝股份有限公司 | Control method of gas water heater and gas water heater |
| CN110398051B (en) * | 2019-06-25 | 2021-06-08 | 华帝股份有限公司 | Control method of gas water heater and gas water heater |
| CN112178939A (en) * | 2019-07-05 | 2021-01-05 | 芜湖美的厨卫电器制造有限公司 | Water heating method and device |
| CN112178939B (en) * | 2019-07-05 | 2022-03-01 | 芜湖美的厨卫电器制造有限公司 | Water heating method and device |
| CN114508860A (en) * | 2022-01-05 | 2022-05-17 | 万家乐热能科技有限公司 | Control method of gas heating water heater |
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| CN105605794B (en) | 2018-07-06 |
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