CN111503902A - Water heater return difference temperature adjusting method and water heater control method and system - Google Patents
Water heater return difference temperature adjusting method and water heater control method and system Download PDFInfo
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- CN111503902A CN111503902A CN202010342115.4A CN202010342115A CN111503902A CN 111503902 A CN111503902 A CN 111503902A CN 202010342115 A CN202010342115 A CN 202010342115A CN 111503902 A CN111503902 A CN 111503902A
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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
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- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
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Abstract
The invention discloses a return difference temperature adjusting method of a water heater, a control method of the water heater and a system, wherein the return difference temperature adjusting method of the water heater comprises the steps of obtaining a pipeline length parameter, and obtaining a standard return difference temperature according to the pipeline length parameter; detecting an environment temperature parameter, and obtaining a return difference temperature correction quantity according to the environment temperature parameter; and calculating the final return difference temperature according to the standard return difference temperature and the return difference temperature correction quantity. According to the technical scheme, the final return difference temperature used for judging whether the water heater needs to finish the preheating process is set in a modifiable mode according to the environment temperature parameter and the pipeline length parameter, the water heater can meet the preheating requirement, and the situation that the preheating process cannot be finished in the water heater is avoided.
Description
Technical Field
The invention relates to the technical field of water heaters, in particular to a return difference temperature adjusting method of a water heater, and a water heater control method and a water heater control system applying the return difference temperature adjusting method.
Background
When the zero-cold-water type water heater preheats water in a pipeline, whether the preheating process needs to be ended is judged according to the detected water inlet temperature, when the water heater detects that the water inlet temperature is lower than a certain numerical value of the set temperature, the preheating requirement is considered to be met, the preheating process needs to be ended, and the certain numerical value is defined as return difference temperature. The return difference temperature of various zero-cold water type water heaters on the market at present is set to be a fixed numerical value which cannot be modified.
In practical application, the zero-cold-water type water heater needs to be matched with a pipeline with a certain length for use, when the zero-cold-water type water heater is preheated, because heat is lost when water flows in the pipeline, the total amount of heat loss is related to the length of the pipeline and the ambient temperature, and therefore if the return difference temperature of the zero-cold-water type water heater cannot be adjusted, the preheating time is extremely possibly overlong, and even the preheating requirement can never be met.
Disclosure of Invention
The present invention is directed to a method for adjusting return temperature of a water heater, a method for controlling a water heater using the method, and a control system, so as to solve one or more technical problems in the prior art and provide at least one useful choice or creation condition.
The technical scheme adopted for solving the technical problems is as follows:
the return difference temperature adjusting method of the water heater comprises the following steps:
step S100, acquiring a pipeline length parameter, and obtaining a standard return difference temperature according to the pipeline length parameter;
step S200, detecting an environment temperature parameter, and obtaining a return difference temperature correction quantity according to the environment temperature parameter;
and step S300, calculating a final return difference temperature according to the standard return difference temperature and the return difference temperature correction quantity.
As a further improvement of the above technical solution, in step S100, the pipeline length parameter is represented by detecting the circulating water flow of the pipeline.
As a further improvement of the above technical solution, step S100 includes the steps of:
step S110, setting a plurality of water flow ranges, and respectively setting a temperature value parameter for each water flow range;
step S120, detecting the flow of circulating water of a pipeline;
step S130, identifying a water flow range in which the flow of the circulating water is positioned, and acquiring a temperature value parameter corresponding to the water flow range;
step S140, using the obtained temperature value parameter as the standard return difference temperature.
As a further improvement of the above technical solution, step S200 includes the following steps:
step S210, setting a plurality of temperature ranges, and respectively setting a correction value parameter for each temperature range;
step S220, detecting an environment temperature parameter;
step S230, identifying the temperature range of the environment temperature parameter, and acquiring a correction value parameter corresponding to the temperature range;
and step S240, taking the acquired correction value parameter as the return difference temperature correction value.
The invention discloses another embodiment of a method for adjusting return difference temperature of a water heater, which comprises the following steps:
step T100, detecting an environment temperature parameter, and obtaining a standard return difference temperature according to the environment temperature parameter;
step T200, acquiring a pipeline length parameter, and obtaining a return difference temperature correction quantity according to the pipeline length parameter;
and step T300, calculating the final return difference temperature according to the standard return difference temperature and the return difference temperature correction quantity.
As a further improvement of the above technical solution, in step T200, the pipeline length parameter is represented by detecting the circulating water flow of the pipeline.
As a further improvement of the above technical solution, step T100 includes the steps of:
step T110, setting a plurality of temperature ranges, and respectively setting a temperature value parameter for each temperature range;
step T120, detecting an ambient temperature parameter;
step T130, identifying the temperature range in which the environment temperature parameter is positioned, and acquiring a temperature value parameter corresponding to the temperature range;
and step T140, taking the obtained temperature value parameter as the standard return difference temperature.
As a further improvement of the above technical solution, step T200 includes the following steps:
step T210, setting a plurality of water flow ranges, and respectively setting a correction value parameter for each water flow range;
step T220, detecting the flow of circulating water of the pipeline;
step T230, identifying a water flow range in which the circulating water flow is positioned, and acquiring a correction value parameter corresponding to the water flow range;
and step T240, taking the obtained correction value parameter as the return difference temperature correction value.
The invention also discloses a water heater control method, which comprises the following steps:
step A100, setting a set temperature and starting a preheating process of a water heater;
step A200, calculating a final return difference temperature by any one of the water heater return difference temperature adjusting methods;
step A300, calculating a preheating temperature threshold according to the set temperature and the final return difference temperature;
and step A400, acquiring the water inlet temperature, comparing the water inlet temperature with the preheating temperature threshold, finishing the preheating process of the water heater if the water inlet temperature is greater than or equal to the preheating temperature threshold, and otherwise, continuing the preheating process of the water heater.
The invention also discloses a water heater control system, comprising:
a heating module;
the water inlet pipeline and the water outlet pipeline are connected with the heating module, and the water outlet pipeline is connected with the water inlet pipeline;
the first temperature sensor and the flow sensor are arranged in the water inlet pipeline;
the second temperature sensor is used for acquiring environmental temperature parameters;
an input module for setting a set temperature;
a water pump and a microprocessor;
the first temperature sensor, the second temperature sensor, the flow sensor, the input module, the heating module and the water pump are respectively connected with the microprocessor;
and after the water heater control system is started, the microprocessor executes the control method.
The invention has the beneficial effects that: according to the technical scheme, the final return difference temperature used for judging whether the water heater needs to finish the preheating process is set in a modifiable mode according to the environment temperature parameter and the pipeline length parameter, the water heater can meet the preheating requirement, and the situation that the preheating process cannot be finished in the water heater is avoided.
Drawings
The invention is further described with reference to the accompanying drawings and examples;
FIG. 1 is a schematic flow chart of a first embodiment of a method for adjusting a return difference temperature according to the present invention;
FIG. 2 is a schematic flow chart illustrating a second embodiment of a method for adjusting a return difference temperature according to the present invention;
FIG. 3 is a schematic flow chart of a water heater control method of the present invention;
FIG. 4 is a schematic diagram of the water heater control system of the present invention.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, if words such as "a plurality" are described, the meaning is one or more, the meaning of a plurality is two or more, more than, less than, more than, etc. are understood as excluding the present number, and more than, less than, etc. are understood as including the present number.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1, the present application discloses a return difference temperature adjustment method for a water heater, wherein a first embodiment of the method comprises the following steps:
step S100, acquiring a pipeline length parameter, and obtaining a standard return difference temperature according to the pipeline length parameter;
step S200, detecting an environment temperature parameter, and obtaining a return difference temperature correction quantity according to the environment temperature parameter;
and step S300, calculating a final return difference temperature according to the standard return difference temperature and the return difference temperature correction quantity.
The circulating water flow in this embodiment is detected by a flow sensor installed in the water pump.
In this embodiment, a standard return difference temperature is first calculated according to a pipeline length parameter, a return difference temperature correction amount is further calculated according to an environmental temperature parameter, the return difference temperature correction amount in this embodiment may be a positive number or a negative number, and finally, the obtained standard return difference temperature and the return difference temperature correction amount are added to obtain a final return difference temperature.
In the embodiment, the final return difference temperature used for judging whether the water heater needs to finish the preheating process is set in a modifiable manner according to the environment temperature parameter and the pipeline length parameter, so that the water heater can meet the preheating requirement, and the situation that the water heater cannot finish the preheating process is avoided.
Further preferably, in step S100, the length parameter of the pipeline is characterized by detecting the circulating water flow of the pipeline. In practical application, the circulating water flow and the pipeline length parameter have an obvious corresponding relationship, and the embodiment considers that the pipeline length parameter is difficult to detect in the practical application process, and can represent the pipeline length parameter in practical application only by detecting the circulating water flow.
Further, in a preferred embodiment, step S100 includes the following steps:
step S110, setting a plurality of water flow ranges, and respectively setting a temperature value parameter for each water flow range;
step S120, detecting the flow of circulating water of a pipeline;
step S130, identifying a water flow range in which the flow of the circulating water is positioned, and acquiring a temperature value parameter corresponding to the water flow range;
step S140, using the obtained temperature value parameter as the standard return difference temperature.
More specifically, in the present embodiment, three water flow rate ranges are provided, which are respectively a section (0, 4.2L), a section [ 4.2L, 4.8L ], and a section (4.8L, + ∞), and L represents a unit, wherein a temperature value parameter corresponding to the section (0, 4.2L) is 5 degrees celsius, a temperature value parameter corresponding to the section [ 4.2L, 4.8L ] is 3 degrees celsius, and a temperature value parameter corresponding to the section (4.8L, + ∞) is 4 degrees celsius.
In the embodiment, the standard return difference temperature and the circulating water flow are set to be in a step function relationship, and the standard return difference temperature can be obtained according to the circulating water flow without complex operation in the calculation process.
Further, in a preferred embodiment, in the present embodiment, the step S200 includes the following steps:
step S210, setting a plurality of temperature ranges, and respectively setting a correction value parameter for each temperature range;
step S220, detecting an environment temperature parameter;
step S230, identifying the temperature range of the environment temperature parameter, and acquiring a correction value parameter corresponding to the temperature range;
and step S240, taking the acquired correction value parameter as the return difference temperature correction value.
More specifically, in the present embodiment, three temperature ranges are set, including a section (— infinity, 5 ℃), a section [5 ℃,25 ℃ ] and a section (25 ℃, +∞), in which the correction value parameter for the section (— ∞,5 ℃) is +1, the correction value parameter for the section [5 ℃,25 ℃ ] is 0, and the correction value for the section (25 ℃, +∞) is-1.
In the embodiment, the ambient temperature parameter and the return difference temperature correction amount are set to be in a step function relationship, and the return difference temperature correction amount can be obtained according to the ambient temperature parameter without complex operation in the calculation process.
Referring to fig. 2, a second embodiment of the return difference temperature adjustment method for a water heater disclosed in the present application is different from the first embodiment in that the second embodiment specifically obtains a standard return difference temperature through an ambient temperature parameter, and obtains a return difference temperature correction through a pipeline length parameter.
Specifically, the present embodiment includes the following steps:
step T100, detecting an environment temperature parameter, and obtaining a standard return difference temperature according to the environment temperature parameter;
step T200, acquiring a pipeline length parameter, and obtaining a return difference temperature correction quantity according to the pipeline length parameter;
and step T300, calculating the final return difference temperature according to the standard return difference temperature and the return difference temperature correction quantity.
Further as a preferred embodiment, in step T200 of this embodiment, the pipeline length parameter is characterized by detecting the circulating water flow of the pipeline.
Further, in a preferred embodiment, the step T100 includes the following steps:
step T110, setting a plurality of temperature ranges, and respectively setting a temperature value parameter for each temperature range;
step T120, detecting an ambient temperature parameter;
step T130, identifying the temperature range in which the environment temperature parameter is positioned, and acquiring a temperature value parameter corresponding to the temperature range;
and step T140, taking the obtained temperature value parameter as the standard return difference temperature.
Further, in this embodiment, step T200 includes the following steps:
step T210, setting a plurality of water flow ranges, and respectively setting a correction value parameter for each water flow range;
step T220, detecting the flow of circulating water of the pipeline;
step T230, identifying a water flow range in which the circulating water flow is positioned, and acquiring a correction value parameter corresponding to the water flow range;
and step T240, taking the obtained correction value parameter as the return difference temperature correction value.
Referring to fig. 3, the present application further discloses a water heater control method applying the above return difference temperature adjustment method, and a first embodiment thereof includes the following steps:
step A100, setting a set temperature and starting a preheating process of a water heater;
step A200, calculating a final return difference temperature through the first embodiment or the second embodiment of the return difference temperature adjusting method of the water heater;
step A300, calculating a preheating temperature threshold according to the set temperature and the final return difference temperature;
and step A400, acquiring the water inlet temperature, comparing the water inlet temperature with the preheating temperature threshold, finishing the preheating process of the water heater if the water inlet temperature is greater than or equal to the preheating temperature threshold, and otherwise, continuing the preheating process of the water heater.
Referring to fig. 4, the present application further discloses a water heater control system applying the above control method, wherein a first embodiment of the water heater control system comprises:
a heating module;
the water inlet pipeline and the water outlet pipeline are connected with the heating module, and the water outlet pipeline is connected with the water inlet pipeline;
a first temperature sensor disposed in the water inlet conduit;
the flow sensor is used for collecting the flow of circulating water;
the second temperature sensor is used for acquiring environmental temperature parameters;
an input module for setting a set temperature;
a water pump and a microprocessor;
the first temperature sensor, the second temperature sensor, the flow sensor, the input module, the heating module and the water pump are respectively connected with the microprocessor;
after the water heater control system is started, the microprocessor executes the first embodiment of the control method.
It should be noted that, in this embodiment, the microprocessor is not directly connected to the water pump and the heating module, but may indirectly control the start and the stop of the water pump and the heating module through a relay or other devices.
In addition, the input module in this embodiment may be a hardware module that can be manually operated, such as a key input, a touch input, a voice input, or the like, or may be a software module, that is, a software module may be used to intelligently identify and set a set temperature required by a user through some algorithm program (e.g., a neural network algorithm).
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the invention as set forth in the claims appended hereto.
Claims (10)
1. The return difference temperature adjusting method of the water heater is characterized in that: the method comprises the following steps:
step S100, acquiring a pipeline length parameter, and obtaining a standard return difference temperature according to the pipeline length parameter;
step S200, detecting an environment temperature parameter, and obtaining a return difference temperature correction quantity according to the environment temperature parameter;
and step S300, calculating a final return difference temperature according to the standard return difference temperature and the return difference temperature correction quantity.
2. The return difference temperature adjusting method of the water heater according to claim 1, characterized in that: in step S100, the length parameter of the pipeline is represented by detecting the circulating water flow of the pipeline.
3. The return difference temperature adjusting method of the water heater according to claim 2, characterized in that: step S100 includes the steps of:
step S110, setting a plurality of water flow ranges, and respectively setting a temperature value parameter for each water flow range;
step S120, detecting the flow of circulating water of a pipeline;
step S130, identifying a water flow range in which the flow of the circulating water is positioned, and acquiring a temperature value parameter corresponding to the water flow range;
step S140, using the obtained temperature value parameter as the standard return difference temperature.
4. The return difference temperature adjusting method of the water heater according to claim 3, characterized in that: step S200 includes the steps of:
step S210, setting a plurality of temperature ranges, and respectively setting a correction value parameter for each temperature range;
step S220, detecting an environment temperature parameter;
step S230, identifying the temperature range of the environment temperature parameter, and acquiring a correction value parameter corresponding to the temperature range;
and step S240, taking the acquired correction value parameter as the return difference temperature correction value.
5. The return difference temperature adjusting method of the water heater is characterized in that: the method comprises the following steps:
step T100, detecting an environment temperature parameter, and obtaining a standard return difference temperature according to the environment temperature parameter;
step T200, acquiring a pipeline length parameter, and obtaining a return difference temperature correction quantity according to the pipeline length parameter;
and step T300, calculating the final return difference temperature according to the standard return difference temperature and the return difference temperature correction quantity.
6. The return difference temperature adjusting method of the water heater according to claim 5, characterized in that: and in the step T200, the length parameter of the pipeline is represented by detecting the circulating water flow of the pipeline.
7. The return difference temperature adjusting method of the water heater according to claim 6, characterized in that: step T100 includes the following steps:
step T110, setting a plurality of temperature ranges, and respectively setting a temperature value parameter for each temperature range;
step T120, detecting an ambient temperature parameter;
step T130, identifying the temperature range in which the environment temperature parameter is positioned, and acquiring a temperature value parameter corresponding to the temperature range;
and step T140, taking the obtained temperature value parameter as the standard return difference temperature.
8. The return difference temperature adjusting method of the water heater according to claim 7, characterized in that: step T200 includes the following steps:
step T210, setting a plurality of water flow ranges, and respectively setting a correction value parameter for each water flow range;
step T220, detecting the flow of circulating water of the pipeline;
step T230, identifying a water flow range in which the circulating water flow is positioned, and acquiring a correction value parameter corresponding to the water flow range;
and step T240, taking the obtained correction value parameter as the return difference temperature correction value.
9. The control method of the water heater is characterized in that: the method comprises the following steps:
step A100, setting a set temperature and starting a preheating process of a water heater;
step A200, calculating a final return difference temperature by the return difference temperature adjusting method of the water heater according to any one of claims 1 to 8;
step A300, calculating a preheating temperature threshold according to the set temperature and the final return difference temperature;
and step A400, acquiring the water inlet temperature, comparing the water inlet temperature with the preheating temperature threshold, finishing the preheating process of the water heater if the water inlet temperature is greater than or equal to the preheating temperature threshold, and otherwise, continuing the preheating process of the water heater.
10. The water heater control system, its characterized in that: the method comprises the following steps:
a heating module;
the water inlet pipeline and the water outlet pipeline are connected with the heating module, and the water outlet pipeline is connected with the water inlet pipeline;
the first temperature sensor and the flow sensor are arranged in the water inlet pipeline;
the second temperature sensor is used for acquiring environmental temperature parameters;
an input module for setting a set temperature;
a water pump and a microprocessor;
the first temperature sensor, the second temperature sensor, the flow sensor, the input module, the heating module and the water pump are respectively connected with the microprocessor;
the microprocessor performs the control method of claim 9 upon startup of the water heater control system.
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| CN202010342115.4A CN111503902B (en) | 2020-04-27 | 2020-04-27 | Water heater return difference temperature adjusting method and water heater control method and system |
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| CN202010342115.4A CN111503902B (en) | 2020-04-27 | 2020-04-27 | Water heater return difference temperature adjusting method and water heater control method and system |
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| CN112325485A (en) * | 2020-11-25 | 2021-02-05 | 宁波方太厨具有限公司 | Circulation control method and system for gas water heater, electronic equipment and storage medium |
| CN113238591A (en) * | 2021-07-13 | 2021-08-10 | 北京力耘柯创医学研究院 | Liquid conveying temperature control equipment |
| CN114459157A (en) * | 2022-01-24 | 2022-05-10 | 广东万家乐燃气具有限公司 | Low-power consumption water control terminal and hot-water heating system |
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| CN111503902B (en) | 2021-05-11 |
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