CN111141021A - Bathtub water injection control method and water heater - Google Patents
Bathtub water injection control method and water heater Download PDFInfo
- Publication number
- CN111141021A CN111141021A CN201811301149.8A CN201811301149A CN111141021A CN 111141021 A CN111141021 A CN 111141021A CN 201811301149 A CN201811301149 A CN 201811301149A CN 111141021 A CN111141021 A CN 111141021A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 335
- 238000002347 injection Methods 0.000 title claims abstract description 57
- 239000007924 injection Substances 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000007599 discharging Methods 0.000 claims abstract description 45
- 238000012937 correction Methods 0.000 claims abstract description 20
- 238000002474 experimental method Methods 0.000 claims abstract description 4
- 238000012360 testing method Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/54—Water heaters for bathtubs or pools; Water heaters for reheating the water in bathtubs or pools
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K3/00—Baths; Douches; Appurtenances therefor
- A47K3/02—Baths
-
- 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)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Epidemiology (AREA)
- General Health & Medical Sciences (AREA)
- Control For Baths (AREA)
Abstract
The invention belongs to the field of bathtub water injection control, and discloses a bathtub water injection control method and a water heater, wherein the method comprises the following steps: obtain bathtub water injection volume V that user set forWater (W)And a set temperature TIs provided with(ii) a According to the water injection quantity V of the bathtubWater (W)And calculating the water injection time t of the bathtub according to the water outlet flow of the water heaterIs provided withTime t of filling water into bathtubIs provided withDividing into n sections, obtaining temperature variation value △ T, wherein the temperature variation value △ T is the temperature variation value of water flowing from the water heater to the bathtub during the water injection time of each section of bathtub, obtaining correction coefficient K of temperature variation, wherein the correction coefficient K is measured by experiment, and calculating the temperature variation value according to the set temperature TIs provided withThe temperature change value △ T and the correction coefficient K, and calculating the outlet water temperature T of the corresponding water heater during the water injection time of the i-th section of bathtubDischarging water(ii) a When the i-th bathtub is filled with waterAt different times, the water heater outputs water temperature T corresponding to the water injection time of the ith section of bathtubDischarging waterAnd (5) discharging water. The control method can ensure that the temperature of the water in the bathtub is consistent with the temperature set by a user.
Description
Technical Field
The invention relates to the field of bathtub water injection control, in particular to a bathtub water injection control method and a water heater.
Background
Along with the continuous development and improvement of the living standard of people, the requirements of people on the use comfort level and the intellectualization of a water heater are higher and higher, the current water heater can be provided with a bathtub water injection function, namely, the bath of a user is realized by matching an auxiliary bathtub. The current water filling function of a water heater bathtub is generally as follows:
first, the leaving water temperature of water heater is the same with bathtub water injection settlement temperature, and this kind of mode control is simple, but does not consider ambient temperature to the radiating influence of bathtub water capacity, and the water in the bathtub can have heat loss, and final temperature is inconsistent with the temperature of actual settlement, influences user experience.
And secondly, the water outlet temperature of the water heater is automatically adjusted according to the ambient temperature correction coefficient and the ambient temperature by detecting the ambient temperature and setting the ambient temperature correction coefficient, so that the heat consumption balance is achieved. The mode can realize that the final water temperature in the bathtub is the same as the set temperature, but the control method of the mode is complex and has higher cost.
Disclosure of Invention
The invention aims to provide a bathtub water injection control method and a water heater, which can ensure that the temperature of water in a bathtub is consistent with a set temperature on the premise of simplifying the control method.
In order to achieve the purpose, the invention adopts the following technical scheme:
a bathtub water filling control method comprises the following steps:
obtain bathtub water injection volume V that user set forWater (W)And the desired set temperature T of the water in the tubIs provided with；
According to the water injection quantity V of the bathtubWater (W)And calculating the water injection time t of the bathtub according to the water outlet flow of the water heater injected into the bathtubIs provided withAnd filling water into the bathtub for a time tIs provided withDividing into n sections;
acquiring a temperature change value △ T, wherein the temperature change value △ T is the temperature change value of water flowing out of the water heater and injected into the bathtub in each section of bathtub water injection time, and the temperature change value △ T is measured by experiments;
obtaining a correction coefficient K of temperature change, wherein the correction coefficient K is measured by a test;
according to the set temperature TIs provided withThe temperature change value △ T and the correction coefficient K, and calculating the outlet water temperature T of the corresponding water heater during the water injection time of the i-th section of bathtubDischarging water1, 2 … n;
when the water injection time of the ith section of bathtub is reached, the water heater outputs water temperature T corresponding to the water injection time of the ith section of bathtubDischarging waterAnd (5) discharging water.
Preferably, the water outlet temperature T of the water heater corresponding to the water filling time of the ith section of bathtubDischarging waterObtained from the following equation: t isDischarging water＝TIs provided with+i*K*△T。
Preferably, the water outlet temperature T of the water heater corresponding to the water filling time of the ith section of bathtubDischarging waterObtained from the following equation: t isDischarging water＝TIs provided with+(n/2)*K*△T。
Preferably, the bathtub water filling control method is controlled by a controller.
Preferably, the controller is provided on the water heater or the bathtub.
Preferably, the bathtub is filled with water with a water volume VWater (W)Set temperature TIs provided withThe input of the temperature change value △ T and the correction coefficient K is completed by an operation panel connected with the controller.
Preferably, the water outlet temperature T corresponding to the water filling time of each section of bathtubDischarging waterAre calculated before the beginning of the first bathtub filling time.
Preferably, the water outlet temperature T corresponding to the water filling time of each section of bathtubDischarging waterAre calculated within a preset time t before the end of the previous bathtub water filling time.
The invention also provides a water heater which injects water into the bathtub by adopting the bathtub water injection control method.
Preferably, the water heater is a gas water heater, an air energy water heater, a solar water heater or an electric water heater.
The invention has the beneficial effects that: bathtub water injection by user settingQuantity VWater (W)Set temperature TIs provided withAccording to the temperature change value △ T and the correction coefficient K obtained by the test, and calculating the bathtub water filling time TIs provided withDividing into n sections, calculating the water outlet temperature T of the water heater corresponding to the water filling time of the i-th section of bathtub according to the parametersDischarging waterThen the water heater can output water at different temperatures T according to the water injection time of different sections of bathtubsDischarging waterHot water injection is performed. Through the mode, the outlet water temperature is corrected by taking the water injection time as a reference, the problem that the deviation of the water temperature in the bathtub and the water temperature set by a user is large can be solved on the premise of not increasing or even reducing the product cost, the user experience is improved, and the product competitiveness is increased.
Drawings
Fig. 1 is a flowchart of a bathtub water filling control method according to a first embodiment of the present invention.
Detailed Description
The technical scheme of the invention is further explained by a specific embodiment formula in combination with the attached drawings.
Example one
Fig. 1 is a flowchart of a bathtub water filling control method in this embodiment, and referring to fig. 1, the bathtub water filling control method in this embodiment includes the following steps:
s10, obtaining the water injection quantity V of the bathtub set by the userWater (W)And the desired set temperature T of the water in the tubIs provided with。
Namely, in the step, the controller obtains the water injection volume V of the bathtub preset by the userWater (W)And the desired set temperature T of the water in the tubIs provided with. The above-mentioned bathtub water injection quantity VWater (W)And a set temperature TIs provided withThe input can be performed through an operation panel connected with the controller, and at the moment, numerical values are displayed on the operation panel for a user to view and change.
The above-mentioned bathtub water injection quantity VWater (W)And a set temperature TIs provided withThe setting can also be carried out through a mobile terminal such as a mobile phone wirelessly connected with the controller, so that the operation of a user is facilitated.
The controller can be a main controller of a water heater matched with the bathtub, or can be independently arranged on the bathtub, at the moment, the controller is in communication connection with the water heater and controls the temperature of the water output by the water heater, or the controller is in communication connection with the water heater and sends a signal to the water heater, and the water heater controls the temperature of the water output by the water heater.
S20, according to the water injection quantity V of the bathtubWater (W)And calculating the water injection time t of the bathtub according to the water outlet flow of the water heater injected into the bathtubIs provided withAnd the bathtub is filled with water for a time tIs provided withIs divided into n sections.
The water injection amount V of the bathtub is acquired in step S10Water (W)And then acquiring the water outlet flow injected into the bathtub by the water heater, wherein the water outlet flow can be acquired by arranging a flow sensor on the water heater, and when the controller is not the main controller of the water heater, the flow sensor sends flow information to the controller.
The controller injects water according to the bathtub water injection volume VWater (W)And calculating the water injection time t of the bathtub according to the water outlet flowIs provided withThen the controller calculates the time t for filling water into the bathtubIs provided withIs divided into n sections. In this embodiment, the above-mentioned bathtub water injection time tIs provided withPreferably equally divided into n sections, i.e. each divided section of the bath is filled for the same time.
S30, obtaining a temperature change value △ T, wherein the temperature change value △ T is the temperature change value of water flowing out of the water heater and injected into the bathtub in the water injection time of each section of bathtub, and the temperature change value △ T is measured by tests.
Namely the time t for filling water into the bathtub by the controllerIs provided withAfter dividing into n sections, the controller obtains △ T temperature change value, wherein the △ T temperature change value is obtained through a large number of tests before the factory shipment, namely, is set before the factory shipment, and the △ T temperature change value is specifically the temperature change value of the water flowing out of the water heater to the bathtub during each section of bathtub water filling time (namely, the heat loss of the hot water output by the water heater can be caused due to the ambient temperature, and the temperature is changed).
In this embodiment, the temperature change values △ T corresponding to the water injection time of each section of bathtub may be the same or different, and may be obtained by multiple tests according to the temperature environment change of the city where the user is located.
And S40, acquiring a correction coefficient K of the temperature change, wherein the correction coefficient K is measured by experiments.
The correction coefficient K of the temperature change is measured through a large number of tests before the bathtub is delivered, and the correction coefficient K is related to the water inlet temperature of the bathtub and is set before the bathtub is delivered.
S50, according to the set temperature TIs provided withThe temperature change value △ T and the correction coefficient K, and calculating the outlet water temperature T of the corresponding water heater during the water injection time of the i-th section of bathtubDischarging waterAnd i is 1 and 2 … n.
Specifically, the water outlet temperature T of the water heater corresponding to the water filling time of the i-th section of bathtubDischarging waterCan be obtained from the following equation: t isDischarging water＝TIs provided with+ i K △ T, the water temperature of the water to be output from the water heater can be calculated for each section of the bathtub filling time by the formula, and the corresponding water temperature T can be calculated for the first section of the bathtub filling time by dividing the bathtub filling time into 4 sections by the formulaDischarging waterIs TIs provided with+ K △ T, corresponding to the temperature T of the outlet water during the second bathtub water injection periodDischarging waterIs TIs provided with+2 x K △ T, corresponding to the leaving water temperature T during the third section of bathtub water injection timeDischarging waterIs TIs provided with+3 x K △ T, corresponding to the leaving water temperature T during the fourth bathtub filling timeDischarging waterIs TIs provided with+ 4K △ t, namely, the temperature of the outlet water of the water heater of the embodiment is higher and higher through the above formula, and finally, when the water injected into the bathtub reaches the water injection volume V of the bathtubWater (W)In time, the adjustment and correction of the outlet water temperature can effectively compensate the set temperature TIs provided withThe injected water reaches the water injection volume V of the bathtubWater (W)Time, heat lost.
In this step, the water temperature T of the outlet water corresponding to the water injection time of each section of bathtubDischarging waterMay be calculated before the beginning of the first bathtub filling time. Namely, when the bathtub is not filled with water, the bathtub is filled with water for time tIs provided withDividing into n sections, and calculating hot water corresponding to water injection time of each section of bathtubOutlet temperature T of water output by the deviceDischarging water。
The water outlet temperature T corresponding to the water injection time of each section of bathtubDischarging waterOr can be calculated within the preset time t before the end of the previous bathtub water filling time. If the water outlet temperature T corresponding to the water filling time of the second section of bathtub is calculated within the preset time T when the water filling time of the first section of bathtub is finishedDischarging waterAnd then after the water filling time of the first section of bathtub is finished, the water heater calculates the water outlet temperature T corresponding to the water filling time of the second section of bathtubDischarging waterAnd outputting hot water. It should be noted that the temperature T of the outlet water corresponding to the first period of the bathtub water filling time isDischarging waterIt should be calculated before the water heater begins to fill.
S60, when reaching the water filling time of the ith bathtub, the water heater outputs water temperature T corresponding to the water filling time of the ith bathtubDischarging waterAnd (5) discharging water.
Namely when the water heater is positioned at the water filling time of a certain section of bathtub, the water heater obtains the outlet water temperature T corresponding to the water filling time of the section of bathtub according to the calculationDischarging waterAnd outputting hot water.
According to the bathtub water injection control method, the water outlet temperature is corrected by taking the water injection time as a reference, the problem that the deviation between the water temperature in the bathtub and the water temperature set by a user is large can be solved on the premise that the product cost is not increased or even reduced, the user experience is improved, and the product competitiveness is increased.
The embodiment also provides a water heater, and water is filled into the bathtub by adopting the bathtub water filling control method. Specifically, the water heater can be a gas water heater, an air energy water heater, a solar water heater or an electric water heater.
Example two
The difference between this embodiment and the first embodiment is that the outlet water temperature T of the water heater corresponding to the filling time of the ith bathtub in this embodimentDischarging waterThe way of calculation of (c) is different. Specifically, the water outlet temperature T of the water heater corresponding to the water filling time of the ith section of bathtub in this embodimentDischarging waterObtained from the following equation: t isDischarging water＝TIs provided with+ (n/2) K △ T, where n is the bath fillTime t of waterIs provided withNumber of segments into which it is divided. By the above formula, the present embodiment can calculate a constant outlet water temperature TDischarging waterThen, in the water filling time of each section of bathtub, the water heater is used for heating water at the constant outlet water temperature TDischarging waterAnd outputting hot water. In the above formula, (n/2) is the average value of the number of stages, for example, the water filling time t of the bathtubIs provided withDivided into 4 sections, the outlet water temperature T of the water heaterDischarging waterIs TIs provided with+ 2K △ T, and then the water heaterIs provided withThe outlet water temperature of + 2K △ T is used for outputting hot water.
Other steps of the bathtub water filling control method of this embodiment are the same as those of the first embodiment, and are not described again.
The embodiment also provides a water heater, and water is filled into the bathtub by adopting the bathtub water filling control method. Specifically, the water heater can be a gas water heater, an air energy water heater, a solar water heater or an electric water heater.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A bathtub water injection control method is characterized by comprising the following steps:
obtain bathtub water injection volume V that user set forWater (W)And the desired set temperature T of the water in the tubIs provided with；
According to the water injection quantity V of the bathtubWater (W)And calculating the water injection time t of the bathtub according to the water outlet flow of the water heater injected into the bathtubIs provided withAnd filling water into the bathtub for a time tIs provided withDividing into n sections;
acquiring a temperature change value △ T, wherein the temperature change value △ T is the temperature change value of water flowing out of the water heater and injected into the bathtub in each section of bathtub water injection time, and the temperature change value △ T is measured by experiments;
obtaining a correction coefficient K of temperature change, wherein the correction coefficient K is measured by a test;
according to the set temperature TIs provided withThe temperature change value △ T and the correction coefficient K, and calculating the outlet water temperature T of the corresponding water heater during the water injection time of the i-th section of bathtubDischarging water1, 2 … n;
when the water injection time of the ith section of bathtub is reached, the water heater outputs water temperature T corresponding to the water injection time of the ith section of bathtubDischarging waterAnd (5) discharging water.
2. The bathtub water filling control method according to claim 1, wherein the i-th section of bathtub water filling time corresponds to the outlet water temperature T of the water heaterDischarging waterObtained from the following equation: t isDischarging water＝TIs provided with+i*K*△T。
3. The bathtub water filling control method according to claim 1, wherein the i-th section of bathtub water filling time corresponds to the outlet water temperature T of the water heaterDischarging waterObtained from the following equation: t isDischarging water＝TIs provided with+(n/2)*K*△T。
4. The bathtub filling control method according to claim 2 or 3, wherein the bathtub filling control method is performed by a controller.
5. The bathtub filling control method of claim 4, wherein the controller is provided on the water heater or the bathtub.
6. The bathtub filling control method of claim 4, wherein the bathtub filling amount V isWater (W)Set temperature TIs provided withThe input of the temperature change value △ T and the correction coefficient K is completed by an operation panel connected with the controller.
7. The bathtub filling control method of claim 1, wherein the outlet temperature T corresponds to the filling time of each section of bathtubDischarging waterAre calculated before the beginning of the first bathtub filling time.
8. The bathtub filling control method of claim 1, wherein the outlet temperature T corresponds to the filling time of each section of bathtubDischarging waterAre calculated within a preset time t before the end of the previous bathtub water filling time.
9. A water heater for filling water into a bathtub by using the method for controlling filling water into a bathtub according to any one of claims 1 to 8.
10. The water heater of claim 9, wherein the water heater is a gas water heater, an air energy water heater, a solar water heater, or an electric water heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811301149.8A CN111141021A (en) | 2018-11-02 | 2018-11-02 | Bathtub water injection control method and water heater |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811301149.8A CN111141021A (en) | 2018-11-02 | 2018-11-02 | Bathtub water injection control method and water heater |
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| CN111141021A true CN111141021A (en) | 2020-05-12 |
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