CN111174443B - Zero cold water control method of gas water heater - Google Patents
Zero cold water control method of gas water heater Download PDFInfo
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- CN111174443B CN111174443B CN202010116753.4A CN202010116753A CN111174443B CN 111174443 B CN111174443 B CN 111174443B CN 202010116753 A CN202010116753 A CN 202010116753A CN 111174443 B CN111174443 B CN 111174443B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 244
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000009835 boiling Methods 0.000 claims abstract description 32
- 238000010586 diagram Methods 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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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- Chemical & Material Sciences (AREA)
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Cookers (AREA)
Abstract
The invention discloses a zero cold water control method of a gas water heater, which comprises the following steps: when the gas water heater is in a standby state, detecting whether a user performs a first water turning-off action; if yes, entering the next step, otherwise, keeping the gas water heater in a standby state; detecting whether the user carries out a second water boiling action within a first fixed time interval; if yes, entering the next step, otherwise, keeping the gas water heater in a standby state; and detecting whether the user performs a second water closing action within a second fixed time interval, if so, starting a zero cold water function, and otherwise, keeping the gas water heater in a standby state. The invention identifies whether the user needs to start the zero-cold-water function or not through two water closing actions, does not need to manually click the zero-cold-water function button, and is convenient to use.
Description
Technical Field
The invention belongs to the technical field of gas water heaters, and particularly relates to a zero-cold-water control method of a gas water heater.
Background
The zero cold water function of the gas water heater means that the zero cold water function is started under the condition of no boiled water, a water pump in the water heater is started at the moment, after the water pump is started, hot water in a hot water pipeline flows up and flows out through a water outlet pipe of the water heater, the outflow water flows back to the water heater through a water return pipeline to form a circulating pipeline, after a water flow signal is detected by the water heater, combustion heating is started, after 3-5 minutes, all water in the whole circulating pipeline can be heated to a set temperature, when a user bathes, hot water exists in a shower head, cold water cannot flow out firstly, and the zero cold water is formed.
However, the zero-cold water realized by the above method has the disadvantage that the zero-cold water function needs to be manually clicked before starting the function because the zero-cold water function consumes more gas during operation; and part gas heater installation is outdoor or the balcony, and the water end is indoor, therefore the operation is comparatively troublesome.
Disclosure of Invention
In order to solve the problems, the invention provides a zero-cold-water control method of a gas water heater, when the zero-cold-water function is started, a control panel of the gas water heater does not need to be operated, and a water faucet only needs to be turned on and off twice within a fixed time.
The technical scheme adopted by the invention is as follows:
a zero cold water control method of a gas water heater is implemented according to the following steps:
s1, the gas water heater is in a standby state, and whether a user carries out a first water closing action is detected; if yes, entering S2, otherwise, keeping the gas water heater in a standby state;
s2, detecting whether the user carries out the second boiling water action within the first fixed time interval; if yes, entering S3, otherwise, keeping the gas water heater in a standby state;
and S3, detecting whether the user performs the second water closing action within the second fixed time interval, if so, starting the zero-cold-water function, otherwise, keeping the gas water heater in a standby state.
Preferably, the sum of the first fixed time interval and the second fixed time interval is 3-5 s.
Preferably, the second fixed time interval in S3 is 0.5-1.5S.
Preferably, in S1, detecting whether the user has performed the first water-closing action specifically includes:
s11, detecting water flow in the gas water heater;
s12, when the water flow in the S11 is larger than the minimum starting flow, recording the first maximum water flow L in 1-2SmaxSimultaneously recording the current water flow LAt present；
S13, according to the first maximum water flow L in the S12maxWith a water flow threshold LThreshold valueThe relationship between and the current water flow rate LAt presentAnd judging whether the user performs the first water closing action.
Preferably, the water flow rate according to the first maximum water flow rate L in S13maxWith a water flow threshold LThreshold valueThe relationship between and the current water flowQuantity LAt presentJudging whether the user carries out the first water-closing action, specifically:
when L ismax>LThreshold valueAnd L isAt present<LmaxWhen the water is in the water-saving state, considering that the user does not perform the first water-saving action, otherwise, considering that the user does not perform the first water-saving action;
when L ismax≤LThreshold valueAnd L isAt present<And when the water volume is 2L/min, the user is considered to perform the first water closing action, otherwise, the user is considered not to perform the first water closing action.
Preferably, the water flow rate threshold value L in S13Threshold valueIs 6L/min.
Preferably, the minimum starting flow rate in S12 is 2.5L/min.
Preferably, in S2, detecting whether the user has performed the second water-closing operation within the first fixed time interval includes:
s21, recording the minimum water flow L in 4SminAnd a second maximum water flow rate Lmax'；
S22, according to the minimum water flow L in S12minAnd a second maximum water flow rate Lmax' the relationship between them judges whether the user has performed the second boiling operation.
Preferably, the water flow rate in S22 is determined according to the minimum water flow rate LminAnd a second maximum water flow rate Lmax' the relationship between them judges whether the user has performed the second boiling water action, which is specifically:
when L ismin< 2L/min, and LmaxIf the water boiling speed is higher than 2.5L/min, the user is considered to have performed the second water boiling action, otherwise, the user is considered not to have performed the second water boiling action;
when L isminNot less than 2L/min, and Lmax'＞(Lmin+1) L/min, the user is considered to have performed the second boiling water action, otherwise, the user is considered not to have performed the second boiling water action.
Preferably, in S3, detecting whether the user has performed the second water-closing action within the second fixed time interval includes:
and in a second fixed time interval, if the water flow becomes zero, judging that the user performs a second water closing action.
Compared with the prior art, when the gas water heater is used, whether the user carries out the first water closing action is detected when the gas water heater is in a standby state; if yes, entering the next step, otherwise, keeping the gas water heater in a standby state; detecting whether the user carries out a second water boiling action within a first fixed time interval; if yes, entering the next step, otherwise, keeping the gas water heater in a standby state; and detecting whether the user performs a second water closing action within a second fixed time interval, if so, starting a zero cold water function, and otherwise, keeping the gas water heater in a standby state. The invention identifies whether the user needs to start the zero-cold-water function or not through two water closing actions, does not need to manually click the zero-cold-water function button, and is convenient to use.
Drawings
FIG. 1 is a flow chart of a zero cold water control method for a gas water heater according to an embodiment of the present invention;
FIG. 2 is a theoretical water flow signal diagram for a two-time on/off gas water heater;
fig. 3 is a signal diagram of actual water flow of a two-time switch gas water heater.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment of the invention provides a zero cold water control method of a gas water heater, which is implemented according to the following steps as shown in figure 1:
s1, the gas water heater is in a standby state, and whether a user carries out a first water closing action is detected; if yes, entering S2, otherwise, keeping the gas water heater in a standby state;
specifically, the water boiling device is used for carrying out the first water boiling action;
s2, detecting whether the user carries out the second boiling water action within the first fixed time interval; if yes, entering S3, otherwise, keeping the gas water heater in a standby state;
and S3, detecting whether the user performs the second water closing action within the second fixed time interval, if so, starting the zero-cold-water function, otherwise, keeping the gas water heater in a standby state.
In S1, detecting whether the user has performed the first water-closing operation specifically includes:
s11, detecting water flow in the gas water heater;
s12, when the water flow in the S11 is larger than the minimum starting flow, recording the first maximum water flow L in 1-2SmaxSimultaneously recording the current water flow LAt present；
S13, according to the first maximum water flow L in the S12maxWith a water flow threshold LThreshold valueThe relationship between and the current water flow rate LAt presentJudging whether the user carries out the first water closing action:
when L ismax>LThreshold valueAnd L isAt present<LmaxWhen the water is in the water-saving state, considering that the user does not perform the first water-saving action, otherwise, considering that the user does not perform the first water-saving action;
when L ismax≤LThreshold valueAnd L isAt present<And when the water volume is 2L/min, the user is considered to perform the first water closing action, otherwise, the user is considered not to perform the first water closing action.
The water flow rate threshold value L in S13Threshold valueIs 6L/min.
The minimum starting flow rate in S12 is 2.5L/min.
Fig. 2 and 3 are a theoretical water flow signal diagram and an actual water flow signal diagram of a two-time switching gas water heater, respectively, and it can be seen from the diagrams that, in practice, when the water flow is large, the water flow does not reach zero due to the short time interval between water switching off; therefore, zero cannot be taken as a demarcation point here;
therefore, in this embodiment, when L ismax≤LThreshold valueAnd L isAt present<At 2L/min, the user is considered to have performed the first water-closing action, but not LAt present＝0。
In the S2 and S3, the sum of the first fixed time interval and the second fixed time interval is 3-5S, and the second fixed time interval in the S3 is 0.5-1.5S.
In S2, it is detected whether the user has performed a second water-closing operation within a first fixed time interval, specifically:
s21, recording the minimum water flow LminAnd a second maximum water flow rate Lmax'；
S22, according to the minimum water flow L in S12minAnd a second maximum water flow rate Lmax' the relationship between them judges whether the user has performed the second boiling operation.
In the step S22, according to the minimum water flow LminAnd a second maximum water flow rate Lmax' the relationship between them judges whether the user has performed the second boiling water action, which is specifically:
when L ismin< 2L/min, and LmaxIf the water boiling speed is higher than 2.5L/min, the user is considered to have performed the second water boiling action, otherwise, the user is considered not to have performed the second water boiling action;
when L isminNot less than 2L/min, and Lmax'＞(Lmin+1) L/min, the user is considered to have performed the second boiling water action, otherwise, the user is considered not to have performed the second boiling water action.
In S3, it is detected whether the user has performed a second water-closing operation within a second fixed time interval, specifically:
and in a second fixed time interval, if the water flow becomes zero, judging that the user performs a second water closing action, starting a zero cold water function at the moment, and otherwise, resetting all data to zero, and keeping the gas water heater in a standby state.
The specific embodiment is as follows:
detecting that the water flow in the gas water heater is 3L/min and recording the maximum water flow L in 2s when the gas water heater is in a standby statemaxIs 7L/min, and the current water flow rate LAt presentIs 3L/min, since Lmax>LThreshold valueAnd L isAt present<L max2, therefore, the user is considered to have performed the first water-closing action;
after 2s, the minimum water flow is 1.5L/min and the maximum water flow is Lmax' is 3.5L/min, since Lmin< 2L/min, and Lmax' > 2.5L/min, so that the second boiling action is considered to be carried out;
and 1s later, detecting that the water flow is zero, judging that the user performs a second water closing action, and starting a zero cold water function of the gas hot water at the moment.
Another embodiment is as follows:
detecting that the water flow in the gas water heater is 3L/min and recording the maximum water flow L in 2s when the gas water heater is in a standby statemaxIs 5L/min, and the current water flow rate LAt present1.5L/min, since Lmax≤LThreshold valueAnd L isAt present<2L/min, therefore, the user is considered to perform the first water closing action;
after 2s, the minimum water flow is detected to be 2.5L/min, and the maximum water flow is detected to be Lmax' is 3L/min, since Lmin< 2L/min, and LmaxWhen the water flow rate is higher than 2.5L/min, the second water boiling action is considered to be carried out, and the minimum water flow rate and the maximum water flow rate do not meet the condition, so that the water boiling action is judged not to be carried out for the second time, and all data of the gas water heater are cleared and are in a standby state.
In the embodiment, when the gas water heater is in a standby state, whether a user performs a first water turning-off action is detected; if yes, entering the next step, otherwise, keeping the gas water heater in a standby state; detecting whether the user carries out a second water boiling action within a first fixed time interval; if yes, entering the next step, otherwise, keeping the gas water heater in a standby state; and detecting whether the user performs a second water closing action within a second fixed time interval, if so, starting a zero cold water function, and otherwise, keeping the gas water heater in a standby state. The invention identifies whether the user needs to start the zero cold water function or not through two water closing actions, and limits the time between the two water closing actions; in addition, this embodiment judges the tap that the user switched on and off twice through discerning discharge, and is simple and convenient.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A zero cold water control method of a gas water heater is characterized by comprising the following steps:
s1, the gas water heater is in a standby state, and whether a user carries out a first water closing action is detected; if yes, entering S2, otherwise, keeping the gas water heater in a standby state;
s2, detecting whether the user carries out the second boiling water action within the first fixed time interval; if yes, entering S3, otherwise, keeping the gas water heater in a standby state;
s3, detecting whether the user has carried out the second water closing action in the second fixed time interval, if yes, starting the zero cold water function, otherwise, keeping the gas water heater in the standby state;
in S1, detecting whether the user has performed a first water-closing action specifically includes:
s11, detecting water flow in the gas water heater;
s12, when the water flow in the S11 is larger than the minimum starting flow, recording the first maximum water flow L in 1-2SmaxSimultaneously recording the current water flow LAt present；
S13, according to the first maximum water flow L in the S12maxWith a water flow threshold LThreshold valueThe relationship between and the current water flow rate LAt presentAnd judging whether the user performs the first water closing action.
2. The method of claim 1, wherein the sum of the first fixed time interval and the second fixed time interval is 3-5 s.
3. The method as claimed in claim 2, wherein the second fixed time interval in S3 is 0.5-1.5S.
4. The method as claimed in claim 3, wherein the step S13 is performed according to a first maximum water flow rate LmaxWith a water flow threshold LThreshold valueThe relationship between and the current water flow rate LAt presentJudging whether the user carries out the first water-closing action, specifically:
when L ismax>LThreshold valueAnd L isAt present<LmaxWhen the water is in the water-saving state, considering that the user does not perform the first water-saving action, otherwise, considering that the user does not perform the first water-saving action;
when L ismax≤LThreshold valueAnd L isAt present<And when the water volume is 2L/min, the user is considered to perform the first water closing action, otherwise, the user is considered not to perform the first water closing action.
5. The zero cold water control method of the gas water heater as claimed in claim 4, wherein the water flow threshold L in S13 is setThreshold valueIs 6L/min.
6. The zero cold water control method of the gas water heater as claimed in claim 5, wherein the minimum starting flow rate in S12 is 2.5L/min.
7. The method for controlling zero cold water of a gas water heater according to any one of claims 1-6, wherein in S2, it is detected whether the user has performed a second water-closing action within a first fixed time interval, specifically:
s21, recording the minimum water flow L in the first fixed time intervalminAnd a second maximum water flow rate Lmax'；
S22, according to the minimum water flow L in S12minAnd a second maximum water flow rate Lmax' relationship between them determines whether the user has enteredThe second water boiling action is performed.
8. The method as claimed in claim 7, wherein the step S22 is performed according to the minimum water flow LminAnd a second maximum water flow rate Lmax' the relationship between them judges whether the user has performed the second boiling water action, which is specifically:
when L ismin< 2L/min, and LmaxIf the water boiling speed is higher than 2.5L/min, the user is considered to have performed the second water boiling action, otherwise, the user is considered not to have performed the second water boiling action;
when L isminNot less than 2L/min, and Lmax'＞(Lmin+1) L/min, the user is considered to have performed the second boiling water action, otherwise, the user is considered not to have performed the second boiling water action.
9. The method for controlling zero-cold water of a gas water heater as claimed in claim 8, wherein in S3, it is detected whether the user has performed the second water-closing action within the second fixed time interval, specifically:
and in a second fixed time interval, if the water flow becomes zero, judging that the user performs a second water closing action.
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| JPS59119132A (en) * | 1982-12-27 | 1984-07-10 | Daikin Ind Ltd | Hot water supply controller of hot water storing type hot water feeder |
| KR20140013372A (en) * | 2012-07-23 | 2014-02-05 | 린나이코리아 주식회사 | Water supplement device of close type boiler using pressure value |
| CN108592410A (en) * | 2018-04-17 | 2018-09-28 | 阿诗丹顿燃具有限公司 | Zero cold water gas instantaneous water heater of one kind control program and zero cold water gas instantaneous water heater |
| CN109442729A (en) * | 2018-12-15 | 2019-03-08 | 成都前锋电子有限责任公司 | A kind of zero cold water water outlet control method of zero cold water fuel wall hanging furnace system |
| CN109442733A (en) * | 2018-12-15 | 2019-03-08 | 成都前锋电子有限责任公司 | A kind of control method of the zero cold water gas heater system with water circulating pump |
| CN110220313A (en) * | 2019-06-12 | 2019-09-10 | 华帝股份有限公司 | Gas water heater control method and gas water heater |
| CN110736259A (en) * | 2019-09-20 | 2020-01-31 | 华帝股份有限公司 | zero-cold-water hot-water supply system and control method thereof |
-
2020
- 2020-02-25 CN CN202010116753.4A patent/CN111174443B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59119132A (en) * | 1982-12-27 | 1984-07-10 | Daikin Ind Ltd | Hot water supply controller of hot water storing type hot water feeder |
| KR20140013372A (en) * | 2012-07-23 | 2014-02-05 | 린나이코리아 주식회사 | Water supplement device of close type boiler using pressure value |
| CN108592410A (en) * | 2018-04-17 | 2018-09-28 | 阿诗丹顿燃具有限公司 | Zero cold water gas instantaneous water heater of one kind control program and zero cold water gas instantaneous water heater |
| CN109442729A (en) * | 2018-12-15 | 2019-03-08 | 成都前锋电子有限责任公司 | A kind of zero cold water water outlet control method of zero cold water fuel wall hanging furnace system |
| CN109442733A (en) * | 2018-12-15 | 2019-03-08 | 成都前锋电子有限责任公司 | A kind of control method of the zero cold water gas heater system with water circulating pump |
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| CN110736259A (en) * | 2019-09-20 | 2020-01-31 | 华帝股份有限公司 | zero-cold-water hot-water supply system and control method thereof |
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