CN110645714A - Control method of variable-rise-number gas water heater - Google Patents
Control method of variable-rise-number gas water heater Download PDFInfo
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- CN110645714A CN110645714A CN201910827629.6A CN201910827629A CN110645714A CN 110645714 A CN110645714 A CN 110645714A CN 201910827629 A CN201910827629 A CN 201910827629A CN 110645714 A CN110645714 A CN 110645714A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 157
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000012544 monitoring process Methods 0.000 claims abstract description 17
- 230000001174 ascending effect Effects 0.000 claims abstract description 16
- 239000007789 gas Substances 0.000 description 84
- 238000001514 detection method Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000000630 rising effect Effects 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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- 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)
- Feeding And Controlling Fuel (AREA)
Abstract
The invention discloses a control method of a variable-rise-number gas water heater, which comprises the following steps: setting a preset number of liters of the gas water heater; adjusting the opening degree of the gas proportional valve to be matched with the preset ascending number; calculating the required number of liters of the gas water heater according to the monitoring data; judging whether the actual outlet water temperature is within the error range of the set outlet water temperature; and if the actual outlet water temperature is within the error range of the set outlet water temperature, controlling the gas proportional valve to maintain the current work, if the actual outlet water temperature exceeds the error range of the set outlet water temperature, judging whether the required rise number exceeds the preset rise number, and controlling the gas proportional valve to work according to the judgment result. The intelligent variable-lift gas water heater can realize the intelligent variable-lift function of the gas water heater, and fully meets the requirements of users.
Description
Technical Field
The invention relates to the technical field of water heaters, in particular to a control method of a variable-rise-number gas water heater.
Background
At present, the variable-rise function of the gas water heater is only selectable by 3 liters, and the variable-rise function is fixed. Because the variable rise number is fixed, only the maximum heat load under the rise number can be burnt, the actual demand load of a user is not monitored, when the user selects the rise number to be too low at the beginning, the actually required rise number can be possibly not matched with the selected rise number at the beginning in the actual use process of the user, and further the outlet water temperature is lower than the set temperature, so that the poor user experience can be caused, in addition, the use of the gas water heater is not intelligent enough, and the demand of the user can not be met.
Disclosure of Invention
The invention aims to solve at least one of the problems in the prior related art to a certain extent, and therefore the invention aims to provide a control method of a variable-rise-number gas water heater, which can realize the intelligent variable-rise function of the gas water heater and fully meet the requirements of users.
The above purpose is realized by the following technical scheme:
a control method for a variable-rise gas water heater, the control method comprising:
setting a preset number of liters of the gas water heater;
adjusting the opening degree of the gas proportional valve to be matched with the preset ascending number;
calculating the required number of liters of the gas water heater according to the monitoring data;
judging whether the actual outlet water temperature is within the error range of the set outlet water temperature;
and if the actual outlet water temperature is within the error range of the set outlet water temperature, controlling the gas proportional valve to maintain the current work, if the actual outlet water temperature exceeds the error range of the set outlet water temperature, judging whether the required rise number exceeds the preset rise number, and controlling the gas proportional valve to work according to the judgment result.
In some embodiments, the step of controlling the operation of the gas proportional valve according to the judgment result is specifically:
if the required number of liters does not exceed the preset number of liters, controlling the gas proportional valve to maintain the current work;
and if the required number of liters exceeds the preset number of liters, adjusting the opening of the gas proportional valve to be matched with the required number of liters.
In some embodiments, the step of calculating the required number of liters for the gas water heater is performed by monitoring data including an actual inlet water temperature, an actual outlet water temperature, and an inlet water volume.
In some embodiments, in the step of calculating the required number of liters for the gas water heater by monitoring data, the required number of liters for the gas water heater is calculated according to the following formula:
In some embodiments, the step of determining whether the actual outlet water temperature is within the error range of the set outlet water temperature specifically includes:
if the actual outlet water temperature is more than or equal to the set outlet water temperature of-1 ℃, judging that the actual outlet water temperature is within the error range of the set outlet water temperature;
and if the actual outlet water temperature is less than the set outlet water temperature of-1 ℃, judging that the actual outlet water temperature exceeds the error range of the set outlet water temperature.
In some embodiments, the step of controlling the operation of the gas proportional valve according to the judgment result comprises:
and if the required number of liters exceeds the preset number of liters, sending a prompt signal.
In some embodiments, the emitted cue signal includes emitting an audible cue and/or flashing a display of the desired number of liters.
Compared with the prior art, the invention at least comprises the following beneficial effects:
1. according to the control method of the variable-rise-number gas water heater, the required rise number of the gas water heater is calculated according to the monitoring data, and then the gas proportional valve is controlled to work according to the judgment results of the actual outlet water temperature, the set outlet water temperature, the required rise number and the preset rise number, so that the intelligent rise-change function of the gas water heater can be realized, and the requirements of users are fully met.
Drawings
FIG. 1 is a schematic structural diagram of a gas water heater in an embodiment of the invention;
fig. 2 is a flow chart illustrating a control method according to an embodiment of the present invention.
Detailed Description
The present invention is illustrated by the following examples, but the present invention is not limited to these examples. Modifications to the embodiments of the invention or equivalent substitutions of parts of technical features without departing from the spirit of the invention are intended to be covered by the scope of the claims of the invention.
The first embodiment is as follows: as shown in fig. 1 and fig. 2, this embodiment provides a control method for a variable-rise-number gas water heater, in which the gas water heater includes a controller, a temperature detection module, a water flow detection module, a gas proportional valve and an operator, in which the temperature detection module is used to detect the water inlet temperature, the water outlet temperature, and the like of the gas water heater, the water flow detection module is used to detect the water inlet amount, and the like of the gas water heater, the gas proportional valve is used to adjust the gas flow of the gas water heater to achieve the purpose of adjusting the load of the gas water heater, the operator is used to set the preset rise number, the required rise number, and send out prompt signals, and the like of the gas water heater, the controller is respectively connected with the temperature detection module, the water flow detection module, the gas proportional valve and the operator through signals, the controller controls the gas proportional valve and/or the operator to operate according to signals fed, the control method comprises the following steps:
setting a preset number of liters of the gas water heater; in the embodiment, the gas water heater is set to have three ascending numbers of L1L, L2L and L3L, L1L < L2L < L3L, a user controls the ascending numbers to change through keys on an operator, if the current ascending numbers are L1L, the ascending number sequence of the operator keys at a time is changed into L1-L2-L3-L2-L1, and different ascending numbers correspond to different maximum gas proportional valve openings;
adjusting the opening degree of the gas proportional valve to be matched with a preset ascending number; for example, when the preset number of liters of the gas water heater is set to be L1 liters by a user, the controller controls the opening degree of the gas proportional valve to be matched with L1 liters, and specifically controls the maximum opening degree of the gas proportional valve to be matched with L1 liters;
calculating the required number of liters of the gas water heater according to the monitoring data; the monitoring data comprises but is not limited to the actual water inlet temperature, the actual water outlet temperature and the water inlet amount, the required monitoring data is small, and the related monitoring data can be accurately obtained, so that the required rising number can be accurately calculated, and the control precision of the follow-up fuel gas proportional valve can be improved;
judging whether the actual outlet water temperature is within the error range of the set outlet water temperature;
and if the actual outlet water temperature is within the error range of the set outlet water temperature, controlling the gas proportional valve to maintain the current work, if the actual outlet water temperature exceeds the error range of the set outlet water temperature, judging whether the required rise number exceeds the preset rise number, and controlling the gas proportional valve to work according to the judgment result.
According to the control method of the variable-rise-number gas water heater, the required rise number of the gas water heater is calculated according to the monitoring data, and then the gas proportional valve is controlled to work according to the judgment results of the actual outlet water temperature, the set outlet water temperature, the required rise number and the preset rise number, so that the intelligent rise-change function of the gas water heater can be realized, and the requirements of users are fully met.
Further, the step of judging whether the actual outlet water temperature is within the error range of the set outlet water temperature specifically comprises the following steps:
if the actual outlet water temperature is more than or equal to the set outlet water temperature of minus 1 ℃, judging that the actual outlet water temperature is within the error range of the set outlet water temperature, and controlling the gas proportional valve to maintain the current work to keep the work stability of the gas water heater to meet the required load of a user if the opening degree of the current gas proportional valve is proved to meet the required load of the user;
if the actual outlet water temperature is less than the set outlet water temperature of minus 1 ℃, judging that the actual outlet water temperature exceeds the error range of the set outlet water temperature, and proving that the opening of the current gas proportional valve cannot meet the required load of a user, so that the actual outlet water temperature is excessively lower than the set outlet water temperature, and therefore, the next judgment work and the work of adjusting the opening of the gas proportional valve are required to be carried out, so that the opening of the gas proportional valve meets the required load of the user.
Further, in the step of calculating the required number of liters of the gas water heater through the monitoring data, the required number of liters of the gas water heater is calculated according to the following formula:
In this embodiment, the step of controlling the operation of the gas proportional valve according to the determination result specifically includes:
if the required ascending number does not exceed the preset ascending number, controlling the gas proportional valve to maintain the current work, and controlling the gas proportional valve to maintain the current work to keep the work stability of the gas water heater to meet the required load of a user after the opening degree of the current gas proportional valve is proved to meet the required load of the user;
if the required ascending number exceeds the preset ascending number, the opening degree of the gas proportional valve is adjusted to be matched with the required ascending number, the intelligent ascending function of the gas water heater can be realized, and the requirements of users are fully met.
The gas water heater provided by the embodiment has three liters of 12L, 14L and 16L according to the formula:
the number of liters required was calculated assuming: setting the water outlet temperature at 42 deg.C, water inlet temperature at 10 deg.C, and water flow at 10L/MIN, calculating to obtain the required liter number
Therefore, the opening degree of the gas proportional valve can be adjusted to be matched with 12.8L through the controller, and in the embodiment, the opening degree of the gas proportional valve is adjusted to be in a 12L gear position through the controller. In order to prevent the influence of gas hot water errors or other factors, such as low gas pressure of a user, which causes that the load required by the user cannot be met after the opening of the gas proportional valve is adjusted to the 12L gear by the controller, the required increasing number can be properly increased by 10-14.08L, and at the moment, the control is requiredThe controller adjusts the opening degree of the gas proportional valve to a 14L gear.
If the preset number of rises of the gas water heater is set to be 12L by a user, the number of rises required is 14.08L through calculation, the most suitable number of rises of the gas water heater is selected to be a 16L gear at the moment, the 16L gear indicator lamp flickers, and the buzzer buzzes three sounds to remind of overload.
If the user does not operate the gas water heater, the user still keeps the 12L gear to enable the gas water heater to work and heat, but at the moment, because the load of the machine is not enough, the output heating temperature is the number-of-liters gear multiplied by 25/the water flow rate is 12 multiplied by 25/10 which is 30 ℃, if the water inlet temperature is 10 ℃, the water outlet temperature can only reach 40 ℃ at most, and is 2 ℃ different from the set temperature 42 ℃, if the set temperature is 50 ℃, the water outlet temperature is 10 ℃, and the user can obviously feel that the water outlet temperature is insufficient.
At this time, the user can automatically set the gas water heater to 16L by one key through the operator, thereby ensuring the normal hot water supply of the gas water heater.
In this embodiment, the step of controlling the operation of the gas proportional valve according to the determination result includes:
and if the required number of liters exceeds the preset number of liters, sending a prompt signal. Specifically, the sent prompt signal comprises a voice prompt and/or a flashing display of the required liter number, so that the user can be timely prompted that the current required liter number exceeds the preset liter number, and the user is required to reset the liter number of the gas water heater in time. The operator in the embodiment has the function of setting the number of liters by one key, and the number of liters required by the flickering display can be automatically set by one key for the gas water heater.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (7)
1. A control method for a variable-rise gas water heater, the control method comprising:
setting a preset number of liters of the gas water heater;
adjusting the opening degree of the gas proportional valve to be matched with the preset ascending number;
calculating the required number of liters of the gas water heater according to the monitoring data;
judging whether the actual outlet water temperature is within the error range of the set outlet water temperature;
and if the actual outlet water temperature is within the error range of the set outlet water temperature, controlling the gas proportional valve to maintain the current work, if the actual outlet water temperature exceeds the error range of the set outlet water temperature, judging whether the required rise number exceeds the preset rise number, and controlling the gas proportional valve to work according to the judgment result.
2. The control method of the variable-rise-number gas water heater according to claim 1, wherein the step of controlling the gas proportional valve to work according to the judgment result specifically comprises the following steps:
if the required number of liters does not exceed the preset number of liters, controlling the gas proportional valve to maintain the current work;
and if the required number of liters exceeds the preset number of liters, adjusting the opening of the gas proportional valve to be matched with the required number of liters.
3. The method as claimed in claim 1, wherein the step of calculating the number of steps required for the gas water heater is performed by using monitoring data, and the monitoring data includes an actual inlet water temperature, an actual outlet water temperature and an inlet water amount.
4. The method as claimed in claim 3, wherein the step of calculating the required number of liters for the gas water heater through the monitoring data calculates the required number of liters for the gas water heater according to the following formula:
wherein L is the required liter number of the gas water heater, T1To set the outlet water temperature, T2The water inlet temperature is defined as A is the water inlet amount。
5. The method for controlling a variable-rise-number gas water heater according to claim 1, wherein the step of judging whether the actual outlet water temperature is within the error range of the set outlet water temperature specifically comprises the following steps:
if the actual outlet water temperature is more than or equal to the set outlet water temperature of-1 ℃, judging that the actual outlet water temperature is within the error range of the set outlet water temperature;
and if the actual outlet water temperature is less than the set outlet water temperature of-1 ℃, judging that the actual outlet water temperature exceeds the error range of the set outlet water temperature.
6. The method as claimed in claim 1, wherein the step of controlling the operation of the gas proportional valve according to the determination result comprises:
and if the required number of liters exceeds the preset number of liters, sending a prompt signal.
7. The method as claimed in claim 6, wherein the prompt signal includes an audible prompt and/or a flashing display of the number of liters required.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910827629.6A CN110645714B (en) | 2019-09-03 | 2019-09-03 | Control method of variable-rise-number gas water heater |
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| CN201910827629.6A CN110645714B (en) | 2019-09-03 | 2019-09-03 | Control method of variable-rise-number gas water heater |
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| CN110645714A true CN110645714A (en) | 2020-01-03 |
| CN110645714B CN110645714B (en) | 2021-12-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112113347A (en) * | 2020-09-14 | 2020-12-22 | 华帝股份有限公司 | Control method of water heater and water heater |
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| JPH06317353A (en) * | 1993-05-07 | 1994-11-15 | Sekisui Chem Co Ltd | Electric water-heater |
| CN106403274A (en) * | 2016-06-29 | 2017-02-15 | 广东万家乐燃气具有限公司 | Gas water heater with heat supply function |
| CN206207715U (en) * | 2016-08-26 | 2017-05-31 | 华帝股份有限公司 | Intelligent gas water heater with variable-lift function |
| CN107144018A (en) * | 2017-05-18 | 2017-09-08 | 广东万家乐燃气具有限公司 | A kind of energy-saving gas water heater and control method |
| CN109237799A (en) * | 2018-08-09 | 2019-01-18 | 广东万家乐燃气具有限公司 | A kind of gas heater control method |
-
2019
- 2019-09-03 CN CN201910827629.6A patent/CN110645714B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06317353A (en) * | 1993-05-07 | 1994-11-15 | Sekisui Chem Co Ltd | Electric water-heater |
| CN106403274A (en) * | 2016-06-29 | 2017-02-15 | 广东万家乐燃气具有限公司 | Gas water heater with heat supply function |
| CN206207715U (en) * | 2016-08-26 | 2017-05-31 | 华帝股份有限公司 | Intelligent gas water heater with variable-lift function |
| CN107144018A (en) * | 2017-05-18 | 2017-09-08 | 广东万家乐燃气具有限公司 | A kind of energy-saving gas water heater and control method |
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Non-Patent Citations (1)
| Title |
|---|
| 孙怀川: "《新编实用电工技术》", 31 May 1995, 安徽科学技术出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112113347A (en) * | 2020-09-14 | 2020-12-22 | 华帝股份有限公司 | Control method of water heater and water heater |
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