CN111380227B - Control method of heating equipment and heating equipment - Google Patents
Control method of heating equipment and heating equipment Download PDFInfo
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- CN111380227B CN111380227B CN201811628298.5A CN201811628298A CN111380227B CN 111380227 B CN111380227 B CN 111380227B CN 201811628298 A CN201811628298 A CN 201811628298A CN 111380227 B CN111380227 B CN 111380227B
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- heater
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- temperature difference
- value
- heating
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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
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
- F24H9/2021—Storage heaters
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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
- F24H1/18—Water-storage heaters
- F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
- F24H1/201—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply
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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
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1818—Arrangement or mounting of electric heating means
Abstract
The invention discloses a control method of a heater, which comprises the following steps: acquiring a first temperature value of a first position in a container box of a heater; acquiring a second temperature value of a second position in a container box of the heater; obtaining a first temperature difference value according to the first temperature value and a preset temperature; obtaining a second temperature difference value according to a second temperature value and the preset temperature; and combining the first temperature difference and the second temperature difference to control the heating states of the first heater at the second position and the second heater at the third position, so that the water temperature at the first position is maintained in a first temperature range and the water temperature at the second position is maintained in a second temperature range. The invention also discloses a heater.
Description
Technical Field
The invention relates to the field of electric appliances, in particular to a control method of heating equipment and the heating equipment.
Background
Heating equipment is a common electric appliance for people. When the heating device is used, the water temperature is unstable due to the fact that hot water is continuously discharged and cold water flows in, and normal use of people is affected.
Disclosure of Invention
The embodiment of the invention provides a control method of heating equipment and the heating equipment.
The technical scheme of the invention is realized as follows:
in one aspect, a method for controlling a heating apparatus is provided, including:
acquiring a first temperature value of a first position in a container box of heating equipment;
acquiring a second temperature value of a second position in a container box of the heating equipment;
obtaining a first temperature difference value according to the first temperature value and a preset temperature;
obtaining a second temperature difference value according to a second temperature value and the preset temperature;
and combining the first temperature difference and the second temperature difference to control the heating states of the first heater at the second position and the second heater at the third position, so that the water temperature at the first position is maintained in a first temperature range and the water temperature at the second position is maintained in a second temperature range.
Further, the controlling the heating states of the first heater located at the second position and the second heater located at the third position by combining the first temperature difference and the second temperature difference includes:
when the first temperature difference is higher than the second temperature difference, controlling the first heater to stop heating and controlling the second heater to heat;
and when the first temperature difference is lower than the second temperature difference, controlling the first heater to heat and controlling the second heater to stop heating.
Further, the combining the first temperature difference and the second temperature difference to control the heating states of the first heater located at the second position and the second heater located at the third position further includes:
and when the difference between the first temperature difference value and the second temperature difference value is within a first difference range and the first temperature difference value and the second temperature difference value are both larger than a first threshold value, controlling the first heater to stop heating and controlling the second heater to heat.
Further, the combining the first temperature difference and the second temperature difference to control the heating states of the first heater located at the second position and the second heater located at the third position further includes:
and when the difference between the first temperature difference value and the second temperature difference value is within a first difference value range, and the first temperature difference value and the second temperature difference value are both greater than a first threshold value and water enters an inlet, controlling the first heater to stop heating and controlling the second heater to heat.
Further, the combining the first temperature difference and the second temperature difference to control the heating states of the first heater located at the second position and the second heater located at the third position further includes:
and when the difference between the first temperature difference value and the second temperature difference value is within a second difference value range, and the first temperature difference value and the second temperature difference value are both smaller than a second threshold value, controlling the first heater to heat and controlling the second heater to stop working.
Further, the combining the first temperature difference and the second temperature difference to control the heating states of the first heater located at the second position and the second heater located at the third position further includes at least one of:
when the first temperature difference value is smaller than a third threshold value and the second temperature difference value is smaller than a fourth threshold value, controlling the first heater to heat and controlling the second heater with heating power different from that of the first heater to heat;
when the first temperature difference is not smaller than a third threshold value and when the second temperature difference is smaller than a fourth threshold value, controlling the first heater to stop heating and controlling the second heater to heat;
and when the first temperature difference is smaller than a third threshold value and the second temperature difference is not smaller than a fourth threshold value, controlling the first heater to heat and controlling the second heater to stop heating.
The present invention also provides a heating apparatus comprising:
a container box for storing water;
the first temperature sensor is used for acquiring a first temperature value of a first position in a container box of the heating equipment;
the second temperature sensor is used for acquiring a second temperature value of a second position in the container box of the heating equipment;
a first heater located at the second location within the container box;
a second heater located at a third location within the container;
the controller is used for controlling the heating states of the first heater and the second heater according to a first temperature difference value and a second temperature difference value, so that the water temperature of the first position is maintained in a first temperature range and the water temperature of the second position is maintained in a second temperature range, the first temperature difference value is the temperature difference value obtained by subtracting the preset temperature from the first temperature value, and the second temperature difference value is the temperature difference value obtained by subtracting the preset temperature from the second temperature value.
Further, the second position is located between the first position and the third position.
Further, an inlet and an outlet are provided on the container box, with the inlet provided at the first position and the outlet provided at the third position.
Further, the first heater and the second heater are rated for the same power.
Further, the controller is further configured to control the first heater to stop heating and control the second heater to heat when the first temperature difference is higher than the second temperature difference;
and when the first temperature difference is lower than the second temperature difference, controlling the first heater to heat and controlling the second heater to stop heating.
Further, the controller is further configured to control the first heater to stop heating and control the second heater to heat when a difference between the first temperature difference value and the second temperature difference value is within a first difference range and both the first temperature difference value and the second temperature difference value are greater than a first threshold value.
Further, the controller is further configured to control the first heater to stop heating and control the second heater to heat when a difference between the first temperature difference value and the second temperature difference value is within a first difference range, and when the first temperature difference value and the second temperature difference value are both greater than a first threshold value and water enters an inlet.
Further, the controller is further configured to control the first heater to heat and control the second heater to stop working when a difference between the first temperature difference value and the second temperature difference value is within a second difference range, and both the first temperature difference value and the second temperature difference value are smaller than a second threshold value.
Further, the first heater and the second heater are rated at different power.
Further, the controller is further configured to control the first heater to heat and control the second heater to heat when the first temperature difference value is smaller than a third threshold value and when the second temperature difference value is smaller than a fourth threshold value;
when the first temperature difference is not smaller than a third threshold value and when the second temperature difference is smaller than a fourth threshold value, controlling the first heater to stop heating and controlling the second heater to heat;
and when the first temperature difference is smaller than a third threshold value and the second temperature difference is not smaller than a fourth threshold value, controlling the first heater to heat and controlling the second heater to stop heating.
Further, the container box includes: the first container box is positioned at the upper part of the second container box, and the first container box is communicated with the second container box through a connecting pipe;
the first temperature sensor is used for acquiring a first temperature value in the first container box;
the second temperature sensor is used for acquiring a second temperature value in the second container box;
the first heater is positioned in the first container box;
the second heater is positioned in the second container box;
the controller is configured to maintain the temperature of the water in the first tank within the first temperature range and maintain the temperature of the water in the second tank within the second temperature range by controlling heating states of the first heater and the second heater according to the first temperature difference and the second temperature difference.
According to the control method of the heating equipment and the heating equipment, the first temperature value of the first position in the container box of the heating equipment is obtained; acquiring a second temperature value of a second position in a container box of the heating equipment; obtaining a first temperature difference value according to the first temperature value and a preset temperature; obtaining a second temperature difference value according to a second temperature value and the preset temperature; and combining the first temperature difference and the second temperature difference to control the heating states of the first heater at the second position and the second heater at the third position, so that the water temperature at the first position is maintained in a first temperature range and the water temperature at the second position is maintained in a second temperature range. The invention is provided with the heaters at the first position and the second position respectively, and controls the heating states of the two heaters through the temperature difference between the temperature values of the two different positions in the container box and the preset temperature so as to maintain the water temperatures of the first position and the second position in the corresponding temperature ranges. Therefore, compared with the water heater only provided with a single heater, or only measuring the temperature of a certain position, or only controlling the water temperature of a certain position, the invention can more evenly and reasonably control the water temperature in the container box of the heating equipment, so that the water temperature in the container box tends to be more stable, and the user experience is improved.
Drawings
Fig. 1 is a schematic flow chart illustrating a heater control method according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a heater according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of another heater according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of another heater according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a heater control method according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a heating manner of a 1300W +800W heater according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a heating mode of a heater with a 2100W +2100W heating tube according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a hot water output temperature curve according to an embodiment of the present invention.
Detailed Description
In various embodiments of the present invention, heaters are respectively disposed at the first position and the second position, and the heating states of the two heaters are controlled by the temperature difference between the temperature values of two different positions in the container box and the preset temperature, so that the water temperatures of the first position and the second position are maintained in the corresponding temperature ranges. In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Fig. 1 is a schematic flow chart of a heater control method according to an embodiment of the present invention, and as shown in fig. 1, the heater control method includes the following steps:
step 101: acquiring a first temperature value of a first position in a container box of heating equipment;
step 102: acquiring a second temperature value of a second position in a container box of the heating equipment;
step 103: obtaining a first temperature difference value according to the first temperature value and a preset temperature;
step 104: obtaining a second temperature difference value according to a second temperature value and the preset temperature;
step 105: and combining the first temperature difference and the second temperature difference, and controlling the heating states of a first heater at a second position and a second heater at a third position, so that the water temperature at the first position is maintained in a first temperature range, and the water temperature at the second position is maintained in a second temperature range.
The heating apparatus of the present invention has 2 heaters and 2 temperature sensors. If the container box can be hung on a wall, the weight of the container box after being fully loaded with water does not exceed the bearing load of the wall. The container box may be a single container box or a double container box. The power of the 2 heaters of the heating device can be the same or different. When the power of the 2 heaters is the same, the power of the single heater does not exceed the load of the power line; when the powers of the 2 heaters are different, the sum of the powers of the 2 heaters does not exceed the load of the power line.
The heater may be any one of a solar heater, a heat pump heater, an electric heater, and a gas heater, wherein the electric heater may be an electric heating tube, etc.
The first position, the second position and the third position can be determined according to the specific structure of the container box and the actual requirements of users, so that the water temperature in the container box of the heater can be controlled reasonably and uniformly, and the water temperature in the container box tends to be stable. Such as: the first position is at the top of the container, the second position is at the middle of the container, and the third position is at the bottom of the container; the first position is at an outlet of the tank, the second position is between the first position and a third position, the third position is at an inlet of the tank, etc.
The first temperature range and the second temperature range can be determined according to the specific structure of the container box and the actual requirements of users, so that the water temperature in the container box of the heater can be controlled reasonably and uniformly, and the water temperature in the container box tends to be stable. Generally, if the temperature values in the first temperature range and the second temperature range are too high, resources are not saved; if the set floor is too low, the temperature falls back to influence the use of the user after the stored water with higher temperature is consumed under the condition that the water use amount of the user is larger.
Optionally, the first heater and/or the second heater heats when water enters the inlet. When the user used heating equipment, heating equipment got into the heating state, started first heater and/or second heater heating to increase and add hot water volume, convenience of customers uses, constantly has water to flow into the container case through the import, also can prevent constantly heating under the inside condition that does not have water of heating equipment, and messenger's heating equipment damages.
The invention is characterized in that the heaters are respectively arranged at the first position and the second position, and the heating states of the two heaters are controlled through the temperature difference between the temperature values of the two different positions in the container box and the preset temperature, so that the water temperatures of the first position and the second position are maintained in the corresponding temperature ranges. The invention can control the water temperature in the container box of the heater evenly and reasonably, so that the water temperature in the container box tends to be stable, and the user experience is improved.
Optionally, the first location is at the top of the container, the second location is at the middle of the container, and the third location is at the bottom of the container. When the first heater positioned at the second position is used for heating, the liquid at the upper half part is quickly heated under the action of the first heater, and the water at the lower half part is slowly heated under the action of heat conduction; when the second heater at the third position is used for heating, the density is reduced after the water is heated, convection is formed by rising, the effect of heating the whole container box is equivalent to that of heating the whole container box, and the upper temperature and the lower temperature are relatively uniform. When the user uses, heat the cold water that gets into with the second heater, the hot water that has consumed the upper half reaches the hot water of the latter half, arrives the cold water that newly gets into again, and temperature variation can be relatively more gentle to make things convenient for user's use.
The water temperatures of the top and middle parts of the container box are respectively measured, but the water temperatures of the bottom of the container box are not measured, because the water temperature of the bottom is easily influenced by cold water which just enters the container box, the condition of the water temperature in the container box cannot be accurately reflected, and the water temperatures of the top and middle parts of the container box can be called to accurately reflect the condition of the water temperature in the container box, so that the first heater and the second heater are controlled to heat.
Further, the controlling the heating states of the first heater located at the second position and the second heater located at the third position by combining the first temperature difference and the second temperature difference includes:
when the first temperature difference is higher than the second temperature difference, controlling the first heater to stop heating and controlling the second heater to heat;
and when the first temperature difference is lower than the second temperature difference, controlling the first heater to heat and controlling the second heater to stop heating.
The first temperature difference value is higher than the second temperature difference value, which indicates that the first temperature value is higher than the second temperature value; the first temperature difference is lower than the second temperature difference, which indicates that the first temperature value is lower than the second temperature value. At this time, the water at a lower temperature needs to be heated so that the temperature of the water in the container tank tends to be balanced, and the temperature of the water flowing out of the outlet is as stable as possible.
Further, the combining the first temperature difference and the second temperature difference to control the heating states of the first heater located at the second position and the second heater located at the third position further includes:
and when the difference between the first temperature difference value and the second temperature difference value is within a first difference range and the first temperature difference value and the second temperature difference value are both larger than a first threshold value, controlling the first heater to stop heating and controlling the second heater to heat.
The preset temperature is a preset desired temperature of the water flowing out of the outlet of the heating device. Optionally, the heating device is provided with a plurality of usage modes corresponding to a plurality of preset temperatures. Such as: the heating equipment is set to be in a bathing mode, and a user is suitable for bathing in the mode and corresponds to the preset temperature in the bathing mode; the heating device is set to a washing mode, and a user is suitable for washing hands, vegetables and the like in the washing mode and corresponds to the preset temperature in the washing mode. The preset temperature in the corresponding bathing mode can be different from the preset temperature in the corresponding washing mode, so that the heating equipment can be conveniently used by a user in different scenes, and the user experience is improved.
The first difference range may be determined according to a specific structure of the container and a user. When the difference between the first temperature difference value and the second temperature difference value is within a first difference range, the first temperature and the second temperature are relatively close to each other; when the first temperature difference value and the second temperature difference value are both larger than the first threshold value, the first temperature value and the second temperature value are both at a higher temperature than the preset temperature. At this time, the temperatures of the first position and the second position in the container box are relatively close, and compared with the preset temperature, the first temperature value and the second temperature value are both at a higher temperature.
Further, the combining the first temperature difference and the second temperature difference to control the heating states of the first heater located at the second position and the second heater located at the third position further includes:
and when the difference between the first temperature difference value and the second temperature difference value is within a first difference value range, the first temperature difference value and the second temperature difference value are both larger than a first threshold value, and water enters an inlet, controlling the first heater to stop heating and controlling the second heater to heat.
When water enters the inlet, the user is indicated to be in use. At this time, the second heater is started, so that the water temperature in the container box is prevented from being too high, and the heating equipment is prevented from being damaged due to continuous heating under the condition that no water exists in the heating equipment.
Further, the combining the first temperature difference and the second temperature difference to control the heating states of the first heater located at the second position and the second heater located at the third position further includes:
and when the difference between the first temperature difference value and the second temperature difference value is within a second difference value range, and the first temperature difference value and the second temperature difference value are both smaller than a second threshold value, controlling the first heater to heat and controlling the second heater to stop working.
When the difference between the first temperature difference value and the second temperature difference value is within a second difference value range, the first temperature value and the second temperature value are relatively close to each other; the first temperature difference and the second temperature difference are both smaller than the second threshold value, which indicates that the first temperature value and the second temperature value are lower than the set temperature range, and the temperatures of the first temperature value and the second temperature value cannot meet the use requirements of users. In this case, since the outlet is usually provided at the upper portion of the tank, the first heater located at the middle portion of the tank needs to be controlled to heat the water in the upper half portion of the tank in order to make the temperature of the outlet water as close to the set temperature as possible and stabilize.
Further, the combining the first temperature difference and the second temperature difference to control the heating states of the first heater located at the second position and the second heater located at the third position further includes at least one of:
when the first temperature difference value is smaller than a third threshold value and the second temperature difference value is smaller than a fourth threshold value, controlling the first heater to heat and controlling the second heater with heating power different from that of the first heater to heat;
when the first temperature difference is not smaller than a third threshold value and when the second temperature difference is smaller than a fourth threshold value, controlling the first heater to stop heating and controlling the second heater to heat;
and when the first temperature difference is smaller than a third threshold value and the second temperature difference is not smaller than a fourth threshold value, controlling the first heater to heat and controlling the second heater to stop heating.
When the rated powers of the first heater and the second heater are different, when the first temperature difference value is smaller than the third threshold value and the second temperature difference value is smaller than the fourth threshold value, the first temperature value and the second temperature value are both lower than the set temperature range, and the temperatures of the first temperature value and the second temperature value cannot meet the use requirements of users.
When the first temperature difference is smaller than a third threshold value and the second temperature difference is not smaller than a fourth threshold value, the first temperature is lower than a set temperature range, and the second temperature meets the set temperature range, at the moment, the first heater is started to heat, and the second heater does not need to heat.
When the first temperature difference is smaller than a third threshold value and the second temperature difference is not smaller than a fourth threshold value, the first temperature meets a set temperature range, and the second temperature is lower than the set temperature range, so that the first heater does not need to be heated and the second heater does not need to be heated.
Fig. 2 is a schematic structural diagram of a heating apparatus provided in an embodiment of the present invention, including:
a tank 201 for storing water;
a first temperature sensor 202 for obtaining a first temperature value at a first location within a container of a heating device;
a second temperature sensor 203 for acquiring a second temperature value of a second location in the container box of the heating apparatus;
a first heater 204 located at the second location within the container box;
a second heater 205 located at a third position within the container;
a controller 206, configured to control heating states of the first heater and the second heater according to a first temperature difference value and a second temperature difference value, so that the water temperature at the first location is maintained in a first temperature range and the water temperature at the second location is maintained in a second temperature range, where the first temperature difference value is a temperature difference value obtained by subtracting a preset temperature from the first temperature value, and the second temperature difference value is a temperature difference value obtained by subtracting the preset temperature from the second temperature value.
Further, the second position is located between the first position and the third position.
Optionally, the first location is at the top of the container, the second location is at the middle of the container, and the third location is at the bottom of the container. When the first heater positioned at the second position is used for heating, the liquid at the upper half part is quickly heated under the action of the first heater, and the water at the lower half part is slowly heated under the action of heat conduction; when the second heater at the third position is used for heating, the density is reduced after the water is heated, convection is formed by rising, the effect of heating the whole container box is equivalent to that of heating the whole container box, and the upper temperature and the lower temperature are relatively uniform. When the user uses, heat the cold water that gets into with the second heater, the hot water that has consumed the upper half reaches the hot water of the latter half, arrives the cold water that newly gets into again, and temperature variation can be relatively more gentle to make things convenient for user's use.
Further, an inlet and an outlet are provided on the container box, with the inlet provided at the first position and the outlet provided at the third position.
The first position is at a top position of the container and the third position is at a bottom position of the container. Because water is heated, density diminishes, and then rises, collects in the first half of containing box, sets up the import in the top position of containing box, and convenience of customers uses hotter water, and can keep the steady of temperature. The outlet is arranged at the bottom of the container box, so that the cold water entering the container box can be discharged from the outlet after being fully mixed with the hot water in the container box, and the effect of ensuring the temperature of the discharged water at the outlet to be stable is achieved.
Further, the first heater and the second heater are rated for the same power.
When the first heater positioned in the middle of the container box is used for heating, the liquid in the upper half part is quickly heated under the action of the first heater, and the water in the lower half part is slowly heated under the action of heat conduction; when the second heater at the bottom of the container box is used for heating, after water is heated, the density is reduced, convection is formed by rising, the effect of heating the whole container box is equivalent to that of heating the whole container box, and the upper temperature and the lower temperature are relatively uniform. Compared with the situation that the rated powers of the first heater and the second heater are different, the temperature change is relatively gentle, so that the use of a user is facilitated.
Further, the controller 206 is further configured to control the first heater to stop heating and control the second heater to heat when the first temperature difference is higher than the second temperature difference;
and when the first temperature difference is lower than the second temperature difference, controlling the first heater to heat and controlling the second heater to stop heating.
Further, the controller 206 is further configured to control the first heater to stop heating and control the second heater to heat when a difference between the first temperature difference value and the second temperature difference value is within a first difference range and both the first temperature difference value and the second temperature difference value are greater than a first threshold value.
Further, the controller 206 is further configured to control the first heater to stop heating and control the second heater to heat when a difference between the first temperature difference and the second temperature difference is within a first difference range, and when the first temperature difference and the second temperature difference are both greater than a first threshold value and water enters an inlet.
Further, the controller 206 is further configured to control the first heater to heat and control the second heater to stop working when a difference between the first temperature difference value and the second temperature difference value is within a second difference range, and both the first temperature difference value and the second temperature difference value are smaller than a second threshold value.
Further, the first heater and the second heater are rated at different power.
Further, the controller 206 is further configured to control the first heater to heat and the second heater to heat when the first temperature difference value is smaller than a third threshold value and when the second temperature difference value is smaller than a fourth threshold value;
when the first temperature difference is not smaller than a third threshold value and when the second temperature difference is smaller than a fourth threshold value, controlling the first heater to stop heating and controlling the second heater to heat;
and when the first temperature difference is smaller than a third threshold value and the second temperature difference is not smaller than a fourth threshold value, controlling the first heater to heat and controlling the second heater to stop heating.
Further, the container box 201 includes: the first container box is positioned at the upper part of the second container box, and the first container box is communicated with the second container box through a connecting pipe;
the first temperature sensor is used for acquiring a first temperature value in the first container box;
the second temperature sensor is used for acquiring a second temperature value in the second container box;
the first heater is positioned in the first container box;
the second heater is positioned in the second container box;
the controller is configured to maintain the temperature of the water in the first tank within the first temperature range and maintain the temperature of the water in the second tank within the second temperature range by controlling heating states of the first heater and the second heater according to the first temperature difference and the second temperature difference.
The embodiment of the invention also provides the water heater and a control method thereof. FIG. 3 is a schematic structural diagram of another heater according to an embodiment of the present invention; fig. 4 is a schematic structural diagram of another heater according to an embodiment of the present invention. As shown in fig. 3 and 4, the water heater of the present invention includes a top temperature sensor, a middle heating tube, a bottom heating tube, a water outlet, a water inlet, etc. The power of a single heating tube cannot exceed the load of a power line of a user home, and the weight of the water tank does not exceed the load borne by a wall of the user home. The water tank can be a single water tank or a double water tank.
The water heater control method is suitable for being used when a user uses water, and is suitable for single-cylinder or double-cylinder water heaters.
Fig. 5 is a schematic diagram of a heater control method according to an embodiment of the present invention. The heating control can be carried out on the two heating pipes according to the numerical range and the corresponding control strategy shown in the figure.
△T1＝TTop part-TBathing device；△T2＝TMiddle part-TBathing deviceWherein, TTop partFor tank top temperature, T, measured by a top temperature sensorMiddle partFor the water tank middle temperature, T, measured by a middle temperature sensorBathing deviceThe temperature is set for the user according to the self requirement.
In the water using process, the heating pipe is forcibly started to heat, and the hot water quantity is increased. In addition, the water temperature is adjusted through the heating pipe, so that the water outlet temperature is as stable as possible. As shown in fig. 5, (c) and (c) all heat the part with low water temperature.
When the water temperature is shown as (r) in fig. 5, the upper and lower temperatures of the water tank are close to the set temperature, but because the cold water enters from the lower part while the water is being used, the bottom heating pipe is started to heat the entering cold water, so as to reduce the fluctuation of the water temperature.
When the water temperature is as shown by ninthly in fig. 5, although the upper and lower temperatures of the water tank are close to each other, the temperature is already lower than the set bath temperature, and the upper water is heated in order to make the outlet water temperature as close to the set bath temperature as possible and be stable.
The water heater used by the invention is provided with 2 heating pipes, and the weight of the water tank does not exceed the load borne by the wall body of a user's home. The line aging of a user household cannot bear high-power load, the wall body is weak, and a large-capacity water heater cannot be used, so that the hot water quantity is small. The existing heat storage type electric water heater matched with 2 heating pipes generally adopts a whole inner container and a half inner container,
a household electric line of a certain user can only load 2.1KW of power, and a wall body can only be provided with a 40L heat storage type water heater.
FIG. 6 is a schematic diagram of a heating manner of a 1300W +800W heater according to an embodiment of the present invention; fig. 7 is a schematic diagram of a heating manner of a heater with a 2100W +2100W heating tube according to an embodiment of the present invention.
As can be seen from a comparison of FIGS. 6 and 7, the heating pattern of 2100W +2100W is less flexible than that of 1300W +800W, but in the same manner, the speed is faster than that of 1300W + 800W.
Since the water tank has a small volume and needs to increase the amount of hot water as much as possible, heating is still required when water is used. The greater the heating power, the greater the amount of hot water produced during the same time that the user is bathing. 1300W +800W start 2 heating pipes at the same time as long as 1 mode, and 2100W +2100W have 2 selection modes. If the user takes a bath after the water is heated to reach the temperature, 1300W +800W is adopted, the temperature of the water outlet is influenced by the 800W heating pipe, the temperature continues to rise, the lower half part of the water enters cold water, the 1300W heating pipe can compensate the temperature, but the compensation is certainly not enough to enable the cold water to reach the set temperature, and the temperature falls back after the water with the outlet water temperature at the upper half part is consumed. If the automatic constant temperature device is not matched, the cold-hot water proportion is required to be manually adjusted by a user for a long time, the larger the temperature drop is, and the more times the cold-hot water proportion is manually adjusted by the user for bath comfort. If the temperature drop is smaller, the temperature changes slowly, and the interval for manually adjusting the cold-hot water ratio is longer. In this case, the 2100W bottom heating tube is used to heat the incoming cold water, so that the temperature changes relatively gently when the hot water in the upper half is consumed to the hot water in the lower half and then to the incoming cold water.
Fig. 8 is a schematic diagram of a hot water output temperature curve according to an embodiment of the present invention, and it can be known from fig. 8 that 2100W +2100W heating tube matching is better than 1300W +800W under the condition of power limitation.
In addition, even if the same forced heating is carried out, the outlet water temperature is ensured to be stable through an intelligent heating mode, as shown in fig. 5, 9 possible cases are listed, and corresponding processing methods are respectively given for the 9 bath temperature cases. The 9 treatment methods are closer to the use habit of users than the pure whole-liner/half-liner heating method.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (14)
1. A control method of a heating apparatus, characterized by comprising:
acquiring a first temperature value of a first position in a container box of heating equipment;
acquiring a second temperature value of a second position in a container box of the heating equipment;
obtaining a first temperature difference value according to the first temperature value and a preset temperature;
obtaining a second temperature difference value according to a second temperature value and the preset temperature;
combining the first temperature difference and the second temperature difference, and controlling the heating states of a first heater at a second position and a second heater at a third position, so that the water temperature at the first position is maintained in a first temperature range and the water temperature at the second position is maintained in a second temperature range; wherein the first position is at the top of the container, the second position is in the middle of the container, and the third position is at the bottom of the container;
the combining the first temperature difference and the second temperature difference to control the heating states of the first heater located at the second position and the second heater located at the third position includes:
when the first temperature difference is higher than the second temperature difference, controlling the first heater to stop heating and controlling the second heater to heat;
and when the first temperature difference is lower than the second temperature difference, controlling the first heater to heat and controlling the second heater to stop heating.
2. The control method according to claim 1,
the combining the first temperature difference and the second temperature difference to control the heating states of the first heater located at the second position and the second heater located at the third position further includes:
and when the difference between the first temperature difference value and the second temperature difference value is within a first difference range and the first temperature difference value and the second temperature difference value are both larger than a first threshold value, controlling the first heater to stop heating and controlling the second heater to heat.
3. The control method according to claim 2,
the combining the first temperature difference and the second temperature difference to control the heating states of the first heater located at the second position and the second heater located at the third position further includes:
and when the difference between the first temperature difference value and the second temperature difference value is within a first difference value range, and the first temperature difference value and the second temperature difference value are both greater than a first threshold value and water enters an inlet, controlling the first heater to stop heating and controlling the second heater to heat.
4. The control method according to claim 1,
the combining the first temperature difference and the second temperature difference to control the heating states of the first heater located at the second position and the second heater located at the third position further includes:
and when the difference between the first temperature difference value and the second temperature difference value is within a second difference value range, and the first temperature difference value and the second temperature difference value are both smaller than a second threshold value, controlling the first heater to heat and controlling the second heater to stop working.
5. The control method according to claim 1,
the combining the first temperature difference and the second temperature difference to control the heating states of the first heater located at the second position and the second heater located at the third position further includes at least one of:
when the first temperature difference value is smaller than a third threshold value and the second temperature difference value is smaller than a fourth threshold value, controlling the first heater to heat and controlling the second heater with heating power different from that of the first heater to heat;
when the first temperature difference is not smaller than a third threshold value and when the second temperature difference is smaller than a fourth threshold value, controlling the first heater to stop heating and controlling the second heater to heat;
and when the first temperature difference is smaller than a third threshold value and the second temperature difference is not smaller than a fourth threshold value, controlling the first heater to heat and controlling the second heater to stop heating.
6. A heating apparatus, comprising:
a container box for storing water;
the first temperature sensor is used for acquiring a first temperature value of a first position in a container box of the heating equipment;
the second temperature sensor is used for acquiring a second temperature value of a second position in the container box of the heating equipment;
a first heater located at the second location within the container box;
a second heater located at a third location within the container;
the controller is used for controlling the heating states of the first heater and the second heater according to a first temperature difference value and a second temperature difference value, so that the water temperature of the first position is maintained in a first temperature range, and the water temperature of the second position is maintained in a second temperature range, wherein the first temperature difference value is a temperature difference value obtained by subtracting a preset temperature from the first temperature value, and the second temperature difference value is a temperature difference value obtained by subtracting the preset temperature from the second temperature value; the first position is at the top of the container box, the second position is at the middle of the container box, and the third position is at the bottom of the container box;
the controller is used for controlling the first heater to stop heating and controlling the second heater to heat when the first temperature difference is higher than the second temperature difference; and when the first temperature difference is lower than the second temperature difference, controlling the first heater to heat and controlling the second heater to stop heating.
7. The heating apparatus according to claim 6,
an inlet and an outlet are provided on the container box, with the inlet provided at the first location and the outlet provided at the third location.
8. The heating apparatus according to claim 6,
the rated power of the first heater is the same as that of the second heater.
9. The heating apparatus according to claim 8,
the controller is further configured to control the first heater to stop heating and control the second heater to heat when a difference between the first temperature difference value and the second temperature difference value is within a first difference range and both the first temperature difference value and the second temperature difference value are greater than a first threshold value.
10. The heating apparatus according to claim 9,
the controller is further configured to control the first heater to stop heating and control the second heater to heat when a difference between the first temperature difference value and the second temperature difference value is within a first difference range, and when the first temperature difference value and the second temperature difference value are both greater than a first threshold value and water enters an inlet.
11. The heating apparatus according to claim 8,
the controller is further configured to control the first heater to heat and control the second heater to stop working when a difference between the first temperature difference value and the second temperature difference value is within a second difference range, and both the first temperature difference value and the second temperature difference value are smaller than a second threshold value.
12. The heating apparatus according to claim 6,
the first heater and the second heater are rated at different power.
13. The heating apparatus according to claim 12,
the controller is further configured to control the first heater to heat and control the second heater to heat when the first temperature difference value is smaller than a third threshold value and when the second temperature difference value is smaller than a fourth threshold value;
when the first temperature difference is not smaller than a third threshold and when the second temperature difference is smaller than a fourth threshold, controlling the first heater to stop heating and controlling the second heater to heat;
and when the first temperature difference is smaller than a third threshold value and the second temperature difference is not smaller than a fourth threshold value, controlling the first heater to heat and controlling the second heater to stop heating.
14. The heating apparatus according to claim 6,
the container box includes: the first container box is positioned at the upper part of the second container box, and the first container box is communicated with the second container box through a connecting pipe;
the first temperature sensor is used for acquiring a first temperature value in the first container box;
the second temperature sensor is used for acquiring a second temperature value in the second container box;
the first heater is positioned in the first container box;
the second heater is positioned in the second container box;
the controller is configured to maintain the temperature of the water in the first tank within the first temperature range and maintain the temperature of the water in the second tank within the second temperature range by controlling heating states of the first heater and the second heater according to the first temperature difference and the second temperature difference.
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| CN201811628298.5A CN111380227B (en) | 2018-12-28 | 2018-12-28 | Control method of heating equipment and heating equipment |
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| CN201811628298.5A CN111380227B (en) | 2018-12-28 | 2018-12-28 | Control method of heating equipment and heating equipment |
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| CN111380227A CN111380227A (en) | 2020-07-07 |
| CN111380227B true CN111380227B (en) | 2022-05-06 |
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| CN114508785B (en) * | 2020-11-16 | 2024-03-08 | 广东美的环境电器制造有限公司 | Control method, device and system for first heating equipment and second heating equipment |
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| CA2259752A1 (en) * | 1998-01-23 | 1999-07-23 | Donald J. Adams | Integrated appliance control system |
| CN104976782A (en) * | 2015-07-28 | 2015-10-14 | 芜湖美的厨卫电器制造有限公司 | Control method for vertical electric water heater |
| CN105180454A (en) * | 2015-10-10 | 2015-12-23 | 珠海格力电器股份有限公司 | Water heater and control method and device thereof |
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| US10184690B2 (en) * | 2017-02-09 | 2019-01-22 | Bock Water Heaters, Inc. | Condensing water heater and condensation control system |
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| CA2259752A1 (en) * | 1998-01-23 | 1999-07-23 | Donald J. Adams | Integrated appliance control system |
| CN104976782A (en) * | 2015-07-28 | 2015-10-14 | 芜湖美的厨卫电器制造有限公司 | Control method for vertical electric water heater |
| CN106403297A (en) * | 2015-07-31 | 2017-02-15 | 青岛经济技术开发区海尔热水器有限公司 | Control method for water heater and water heater |
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Effective date of registration: 20220902 Address after: 241000 west side of 3 / F, No.5 office building, new energy and new materials gathering area, Fuzhou Road, Jiangbei District, Wuhu City, Anhui Province Patentee after: Wuhu Midea intelligent kitchen electricity Manufacturing Co.,Ltd. Address before: 241000 Wanchun East Road, Wuhu Economic and Technological Development Zone, Wuhu City, Anhui Province Patentee before: WUHU MIDEA KITCHEN AND BATH APPLIANCES MFG. Co.,Ltd. |
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