CN111473524A - Self-suction water heater control method and control system - Google Patents
Self-suction water heater control method and control system Download PDFInfo
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- CN111473524A CN111473524A CN202010396059.2A CN202010396059A CN111473524A CN 111473524 A CN111473524 A CN 111473524A CN 202010396059 A CN202010396059 A CN 202010396059A CN 111473524 A CN111473524 A CN 111473524A
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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
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- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The invention provides a self-priming water heater control method and a control system, wherein the method comprises the following steps: collecting the ambient temperature after electrifying, and defaulting to the initial water temperature; comparing the relationship between the initial water temperature and the water freezing temperature and prompting; selecting a water heater using mode; automatically setting the starting flow of the water pump by combining the electric heating power and the recommended outlet water temperature or the user-set water temperature in the current mode; detecting the outlet water temperature in real time, and respectively calculating the difference value between the real-time water temperature and the initial water temperature and the difference value between the real-time water temperature and the target water temperature, so as to automatically fine-adjust the flow of the water pump according to the difference value; and recording the operation parameters and carrying out classification and filing. By the method and the corresponding control system, the flow of the water pump can be adjusted by detecting the water temperature and combining the heating capacity of the heater, so that the water temperature after heating is adjusted, and the use process is simpler and more convenient.
Description
Technical Field
The invention relates to the field of water heaters, in particular to a self-suction type water heater control method and a self-suction type water heater control system.
Background
The self-priming water heater is a water heater suitable for a water pressure-free occasion formed by combining a self-priming pump and a traditional water heater, and water is sucked into the water heater from a low-level free water surface through the self-priming pump and flows out after being heated. Compared with the traditional water heater, the water flow can be realized by adjusting the water pump, the control difficulty is increased by increasing the control quantity, and how to realize effective control by combining the water temperature with the water pump adjusting characteristic and the heating capacity of the heater through real-time detection is vital to improving the comfort.
Disclosure of Invention
In view of this, the present invention provides a control method and a control system for a self-priming water heater, which can adjust the flow rate of a water pump by detecting the water temperature and combining with the heating capacity of a heater, so as to adjust the heated water temperature, and make the use process simpler and more convenient.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a self-priming water heater control method comprises the following steps:
automatically collecting the current ambient temperature after electrifying, and defaulting to the initial water temperature;
comparing the initial water temperature with the freezing point temperature of water, if the initial water temperature is lower than the freezing point temperature, prompting a user to confirm whether a water source is available, and if the initial water temperature is higher than the freezing point temperature, displaying normal;
selecting a use mode, such as bathing;
automatically setting the starting flow of the water pump by combining the electric heating power and the recommended outlet water temperature or the user-set water temperature in the current mode;
after a start button is pressed, the water pump is started, and the electric heater is started after the flow detection switch confirms that water exists;
detecting the outlet water temperature in real time, and respectively calculating the difference value between the real-time water temperature and the initial water temperature and the difference value between the real-time water temperature and the target water temperature;
according to the difference, the flow of the water pump is finely adjusted, so that the comfort of the outlet water temperature is ensured;
recording the operation parameters when the machine is turned off, and classifying according to the use mode and the initial water temperature;
and when the water heater is used next time, if the using modes are the same and the initial water temperature level is the same, starting the water heater according to the current operating parameters.
A self-priming water heater control system, the system comprising:
the temperature acquisition module is used for acquiring initial water temperature before starting and real-time water temperature after starting;
the calculation module is used for comparing water temperatures, initially starting flow calculation, and calculating a difference value between real-time water temperature and initial water temperature and a difference value between real-time water temperature and target water temperature;
the control module is used for controlling the flow of the water pump;
the information storage module is used for recording the operation parameters and taking the operation parameters as default parameters when the operation parameters are started next time;
the temperature acquisition module is close to the water outlet position, acquires the ambient air temperature when no water flows, and acquires the water temperature when water flows;
the computing module also comprises a mode setting part for selecting a use mode;
and the control module can carry out water pump starting control and real-time regulation according to the calculation data of the calculation module.
Compared with the prior art, the self-priming water heater control method and the control system can realize initial water temperature acquisition and real-time water temperature acquisition by stages by using a single temperature acquisition module, then perform comparison calculation and difference calculation by using a calculation module, further realize water pump flow control by using the control module, finally obtain proper outlet water temperature, are convenient to use and improve user experience.
Drawings
FIG. 1 is a flow chart of a control method of a self-priming water heater according to the present invention;
FIG. 2 is a block diagram of a self-priming water heater control system
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, a self-priming water heater control method comprises the following steps:
s1: collecting the ambient temperature after electrifying, and defaulting to the initial water temperature;
s2: comparing the relationship between the initial water temperature and the water freezing temperature and prompting;
s3: selecting a water heater using mode;
s4: automatically setting the starting flow of the water pump by combining the electric heating power and the recommended outlet water temperature or the user-set water temperature in the current mode;
s5: detecting the outlet water temperature in real time, and respectively calculating the difference value between the real-time water temperature and the initial water temperature and the difference value between the real-time water temperature and the target water temperature, so as to automatically fine-adjust the flow of the water pump according to the difference value;
s6: and recording the operation parameters and carrying out classification and filing.
The self-suction water heater is characterized in that only one temperature sensor is arranged at the outlet of the self-suction water heater, the temperature sensor is positioned in ambient air when the self-suction water heater is powered on, the collected temperature is the ambient temperature of the self-suction water heater, and the ambient temperature is defaulted to be the initial water temperature because the self-suction water heater is close to a water taking source when in use; when the self-suction water heater is started, water flows through the temperature sensor, and the measured temperature is the temperature of the water flowing through the heater.
Comparing the initial water temperature with the water icing temperature (default to 0 ℃), when the initial water temperature is lower than the water icing temperature, icing of a water taking source is possible, prompt tone prompt is required, and the user can perform the following operations after confirming that; when the initial water temperature is higher than the freezing temperature of water, the normal operation is prompted, and the operation is not needed.
And selecting a water heater mode, wherein the main modes comprise vegetable washing, bowl brushing/bathing and the like, the default target outlet water temperature of each type is respectively 25 ℃, 30 ℃ and 40 ℃, and meanwhile, the user is supported to modify the target outlet water temperature.
Selecting heater power, and calculating the water outlet flow of the water pump according to the use mode of the water heater; after the start button is pressed down, the water pump is started, and at the moment, the flow switch automatically starts the electric heater after detecting water flow.
The method comprises the following steps that a used water pump is a direct-current diaphragm pump, the flow of the water pump is adjusted by adjusting the voltage of the water pump possibly, a difference m1 between real-time water temperature and initial water temperature (m1 is the real-time water temperature minus the initial water temperature) and a difference m2 between the real-time water temperature and target water temperature (m2 is the target water temperature minus the real-time water temperature) are calculated during the working period of a water heater respectively, and when-1 is less than m2 and less than 1, the current voltage of the water pump is kept to keep; when m2 is more than 1, the water pump voltage is reduced by a% of the rated voltage but not less than 50% of the rated voltage in each collection period (1 second); raising the water pump voltage by 2 a% of the rated voltage every collection period (1 second) when m2 < -1, but not higher than the rated voltage; wherein a is (current water pump voltage m2)/(m1 rated voltage) 100%.
When the use is finished, classifying and filing according to the use mode and the initial water temperature, wherein the initial water temperature is changed by 3 ℃ to one grade, and the following table is shown:
and when the water heater is used next time, if the using modes are the same and the initial water temperature level is the same, starting the water heater according to the current operating parameters.
As shown in fig. 2, the present embodiment further provides a water heater control system, which includes a temperature acquisition module 1, a calculation module 2, a mode setting module 3, a control module 4, and an information storage module 5,
the temperature acquisition module 1 is mainly used for acquiring temperature parameters, and in order to meet the requirements of acquiring ambient temperature before starting and water temperature after starting in the control method, the temperature acquisition module 1 is placed at the position of a water outlet of the self-suction water heater;
the calculating module 2 comprises an obtaining unit 21 and a comparing unit 22, wherein the obtaining unit 21 is configured to obtain real-time temperature data from the temperature collecting module 1, and send the data to the comparing unit 22 to calculate a difference m1 between the real-time water temperature and the initial water temperature (m1 is the real-time water temperature minus the initial water temperature) and a difference m2 between the real-time water temperature and the target water temperature (m2 is the target water temperature minus the real-time water temperature);
the mode setting module 3 is used for setting the use mode of the water heater, such as: washing vegetables, washing bowls, bathing and the like, guiding the default target outlet water temperature in the selected mode into the calculation module 2, and simultaneously supporting the user to modify the target outlet water temperature;
the control module 4 comprises an obtaining unit 41 and an adjusting unit 42, wherein the obtaining unit 41 obtains the difference values m1 and m2 from the calculating module 2, and the current water pump flow parameter, and the adjusting unit 42 adjusts the water pump voltage according to the parameters so as to adjust the water pump flow;
and the information storage module 5 stores the operation parameters when the use is finished, and directly calls the parameters in the same temperature interval in the same mode next time.
Compared with the prior art, the self-priming water heater control method and the control system can realize initial water temperature acquisition and real-time water temperature acquisition in stages by using the single temperature acquisition module 1, then perform comparison calculation and difference calculation by using the calculation module 2, further realize water pump flow control by using the control module 4, finally obtain proper water outlet temperature, are convenient to use and improve user experience.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (3)
1. A self-priming water heater control method is characterized by comprising the following steps:
s1: collecting the ambient temperature after electrifying, and defaulting to the initial water temperature;
s2: comparing the relationship between the initial water temperature and the water freezing temperature and prompting;
s3: selecting a water heater using mode;
s4: automatically setting the starting flow of the water pump by combining the electric heating power and the recommended outlet water temperature or the user-set water temperature in the current mode;
s5: detecting the outlet water temperature in real time, and respectively calculating the difference value between the real-time water temperature and the initial water temperature and the difference value between the real-time water temperature and the target water temperature, so as to automatically fine-adjust the flow of the water pump according to the difference value;
s6: and recording the operation parameters and carrying out classification and filing.
2. The self-priming water heater control method as claimed in claim 1, wherein the real-time water temperature and initial water temperature difference m1(m1 is the real-time water temperature minus the initial water temperature) and the real-time water temperature and target water temperature difference m2(m2 is the target water temperature minus the real-time water temperature) are calculated respectively during the operation of the water heater, and when-1 < m2 < 1, the current water pump voltage is kept to maintain the flow constant; when m2 is more than 1, the water pump voltage is reduced by a% of the rated voltage but not less than 50% of the rated voltage in each collection period (1 second); raising the water pump voltage by 2 a% of the rated voltage every collection period (1 second) when m2 < -1, but not higher than the rated voltage; wherein a is (current water pump voltage m2)/(m1 rated voltage) 100%.
3. A self-priming water heater control system, the system comprising:
the temperature acquisition module 1 is used for acquiring initial water temperature before starting and real-time water temperature after starting;
the calculation module 2 is used for comparing water temperatures, initially starting flow calculation, and calculating a difference value between a real-time water temperature and an initial water temperature and a difference value between a real-time water temperature and a target water temperature;
the control module 4 is used for controlling the flow of the water pump;
and the information storage module 5 is used for recording the operation parameters and taking the operation parameters as default parameters when the system is started next time.
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| CN202010396059.2A CN111473524A (en) | 2020-05-12 | 2020-05-12 | Self-suction water heater control method and control system |
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| CN202010396059.2A CN111473524A (en) | 2020-05-12 | 2020-05-12 | Self-suction water heater control method and control system |
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Cited By (4)
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| CN113503643A (en) * | 2021-06-08 | 2021-10-15 | 广东盈科电子有限公司 | Control method and control device for heating drinking water |
| CN113721682A (en) * | 2021-08-27 | 2021-11-30 | 广东维宁科技有限公司 | Control method and circuit for quickly reaching preset temperature |
| CN114947542A (en) * | 2022-06-15 | 2022-08-30 | 深圳拓邦股份有限公司 | Instant heating type water dispenser water temperature control method and system and instant heating type water dispenser |
| CN115490303A (en) * | 2021-08-24 | 2022-12-20 | 青岛海尔施特劳斯水设备有限公司 | Fruit and vegetable cleaning method and water purifier |
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| CN107314551A (en) * | 2017-07-31 | 2017-11-03 | 重庆大学 | It is a kind of that the water heater control method and system for realizing remote adjustment are detected by current |
| CN110454981A (en) * | 2019-07-04 | 2019-11-15 | 佛山市厦欣科技有限公司 | The control system of swimming pool heat pump air-conditioner/water heater with second level anti-frost protection |
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| CN104423401A (en) * | 2013-08-23 | 2015-03-18 | 美的集团股份有限公司 | Water dispenser and outgoing water temperature control method thereof |
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| CN113503643A (en) * | 2021-06-08 | 2021-10-15 | 广东盈科电子有限公司 | Control method and control device for heating drinking water |
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Application publication date: 20200731 |