CN111426065A - Air source heat pump water heater control method and device based on Internet of things - Google Patents
Air source heat pump water heater control method and device based on Internet of things Download PDFInfo
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- CN111426065A CN111426065A CN202010182585.9A CN202010182585A CN111426065A CN 111426065 A CN111426065 A CN 111426065A CN 202010182585 A CN202010182585 A CN 202010182585A CN 111426065 A CN111426065 A CN 111426065A
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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
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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
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water 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
- 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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses an air source heat pump water heater control method and device based on the Internet of things, and relates to the technical field of air source heat pumps. The invention comprises the following steps: acquiring historical operating data of the air source heat pump water heater; determining intelligent opening time according to the acquired historical data; controlling the air source heat pump water heater to start a hot water making function when the starting requirement is met; when the water level detector in the heat storage water tank detects that the water quantity is insufficient, the cold water pipe is opened to feed water; cold water is heated by an air source heat pump water heater and then flows into a heat storage water tank; when the water level detector in the heat storage water tank detects that the water quantity is sufficient, the cold water pipe is closed. According to the invention, the water temperature detector is arranged in the hot water storage tank to monitor the water temperature in the water storage tank in real time, the water heater is used for heating tap water, and when the water temperature is insufficient, the controller can control electric auxiliary heating to carry out secondary heating to reach the use standard of a user, so that the water heater is more intelligent, economic and environment-friendly.
Description
Technical Field
The invention belongs to the technical field of air heat source pumps, and particularly relates to an air source heat pump water heater control method based on the Internet of things, namely an air source heat pump water heater device based on the Internet of things.
Background
Renewable energy is a material basis for survival and development of human society, China is a large energy consumption country with a large population and relatively deficient energy, although the total amount of natural resources is discharged in the seventh world, the total amount of energy is about 4 trillion tons of standard coal and third world, and the per-capita energy occupancy is about 40% of the average world level. Although the average energy consumption of people in China is less than half of the average energy consumption level of people in the world, the total energy consumption reaches the second in the world. From the energy consumption structure, China is the largest coal consuming country in the world, and coal consumption accounts for about 67% of total energy, which is one of the root causes of serious environmental pollution and annual deterioration of ecology. Therefore, the great exploitation of the practical application of new energy and renewable energy becomes an important strategic task of solving energy shortage and protecting ecological environment in China.
Air source energy is an important component of new and renewable energy sources. The air source has huge energy, and is inexhaustible energy. The utilization of air-source energy is not like the conventional energy sources in the earth, and can be completely exhausted after hundreds of years. The air source can be widely distributed and is convenient to obtain. Moreover, the air source does not need to be mined and transported, is safe and sanitary to use, has no pollution to the environment, and is a creditable clean energy source. The utilization of the air source energy has huge market prospect, not only brings good social benefit and environmental benefit, but also has obvious economic value.
In recent years, with the increasing resource and environment problems, on the premise of meeting the requirements of people on health and comfort, natural resources are reasonably utilized, the environment is protected, and the conventional energy consumption is reduced, so that the problems become an important problem facing the heating, ventilating and air conditioning industry. In order to make the air conditioning industry take a sustainable development way, the technology of the air conditioning industry needs to be innovated. An air source heat pump heating air conditioning system is an environment-friendly novel air conditioning system which utilizes renewable energy sources, is efficient, energy-saving and pollution-free, and can heat and refrigerate. As an effective energy-saving green product, the air source heat pump plays an increasingly important role in the air conditioning system of the buildings in China. Therefore, the air source heat pump technology has wide application prospect in China. Its application will produce great economic and social benefits.
The heating of the northern area of china before mostly uses the boiler system of high energy consumption, and the boiler efficiency is low, and the emission is many, has caused very big waste to the environment, and the cross air of ultra-low temperature swimming pool heat pump is gone out, provides a better selection for the swimming pool constant temperature in northern area. The air source heat pump has high working efficiency, has wide application prospect in a new coal-to-electricity project, is quick in heating, is energy-saving and environment-friendly, has important significance for relieving haze in the winter heating season of northern cities and reducing pollutant discharge, and has quick rise of market occupation. However, the conventional air source heat pump mostly adopts an asynchronous motor, the starting current is large, and the peak-valley time period of the coal-to-electricity conversion is uniform, so that the starting impact of the air source heat pump is large in the initial peak-valley time period, and therefore the variable frequency air source heat pump becomes a hotspot for further developing markets. In addition, because the heating capacity of the current solar water heater is insufficient in winter, an air source heat pump for assisting the solar water heater is also provided, so that sufficient hot water can be provided for users in winter. Also for example, an air source heat pump in combination with a distributed power source, such as a photovoltaic power source and a wind generator, implements a solution for powering an air source heat pump with renewable energy.
The existing variable-frequency air source heat pump can adjust the rotating speed of a direct current motor by controlling the magnitude of direct current voltage so as to control output power, thereby realizing linear adjustment of temperature and enhancing the comfort of a human body, but for a power grid system, the peak valley of power utilization cannot be thoroughly changed, and the load fluctuation inhibition management is not facilitated; because the output regulation control of the existing variable-frequency air source heat pump is not essentially different from the regulation control of the traditional variable-frequency air conditioner, the control of the variable-frequency air source heat pump is completely based on the condition of the demand of an indoor user, and the economic benefit cannot be improved by utilizing the price difference of peak-valley electricity prices.
Aiming at the problem that the energy is wasted or the comfort is poor due to the fact that the air source heat pump is used for heating water, an effective solution is not provided at present.
Disclosure of Invention
The invention aims to provide an air source heat pump water heater control method and device based on the Internet of things.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to an air source heat pump water heater control method based on the Internet of things, which comprises the following steps:
step S1: a user downloads control software of the air source heat pump water heater by using an intelligent terminal;
step S2: the control software is in communication connection with the air source heat pump water heater based on the Internet of things;
step S3: acquiring historical operating data of the air source heat pump water heater;
step S4: determining intelligent opening time according to the acquired historical data;
step S5: controlling the air source heat pump water heater to start a hot water making function when the starting requirement is met;
step S6: when the water level detector in the heat storage water tank detects that the water quantity is insufficient, the cold water pipe is opened to feed water;
step S7: cold water is heated by an air source heat pump water heater and then flows into a heat storage water tank;
step S8: when the water level detector in the heat storage water tank detects that the water quantity is sufficient, the cold water pipe is closed.
Preferably, in step S3, the operation history data of the air source heat pump water heater includes the recoverable heat available for heating water, which is generated by the air source heat pump water heater refrigerating every day on average within a preset time range; acquiring the average daily hot water heat consumption of the air source heat pump water heater within a preset time range; during the operation process of the air source heat pump water heater, a series of logs or operation record tables are automatically generated, historical data of the operation of the water heater, such as the starting time and the closing time of a unit, the starting time and the ending time of a refrigeration mode, the set refrigeration temperature, the starting time and the ending time of a heating water mode, the set hot water temperature and the like, are recorded, and the required historical data are obtained by calling the logs or the operation record tables.
Preferably, in step S4, the determining the smart on time according to the acquired historical data includes: according to the obtained recoverable heat and the hot water using heat, the time for independently starting the hot water making function of the air source heat pump hot water every day is determined; and determining the intelligent starting time according to the determined time for independently starting the water heating function every day.
Preferably, in step S7, a water temperature sensor is installed at a water outlet of a condenser of the air source heat pump water heater, and when the temperature measured by the water temperature sensor does not reach the water temperature preset by the control software, the electric auxiliary heat is started to heat the water in the hot water storage tank until the preset temperature is reached; ensuring that the user has an adequate supply of hot water every day; the energy waste caused by the fact that the heating water is opened too early and the poor comfort caused by the fact that the heating water is opened too late are avoided.
The invention relates to an air source heat pump water heater device based on the Internet of things, which comprises a heat storage water tank, a water heater body and a main controller, wherein the heat storage water tank is connected with the water heater body;
the water heater body comprises a condenser, a liquid storage tank, a filter, an expansion valve, an evaporator and a compressor which are sequentially and circularly connected; the bottom of the condenser is connected with a cold water pipe; a water pump is arranged on the cold water pipe; the top of the condenser is connected with a hot water pipe; the hot water pipe is communicated with the heat storage water tank;
a water level detector is arranged in the heat storage water tank; a water outlet pipe is arranged at the bottom of the heat storage water tank;
the condenser, the liquid storage tank, the filter, the expansion valve, the evaporator, the compressor water pump and the water level detector are all connected with the main controller.
Preferably, the water outlet pipe and the cold water pipe are both provided with electromagnetic valves; the battery valve is connected with the controller.
Preferably, an electric auxiliary heating coil is arranged at the bottom in the heat storage water tank; the electric auxiliary heating coil is connected with the controller.
Preferably, the controller employs an MSP430F5438 microcontroller.
The invention has the following beneficial effects:
(1) according to the invention, the air source heat pump water heater is controlled to start the hot water making function when the intelligent starting time is met by acquiring the historical operating data of the air source heat pump water heater and determining the intelligent starting time according to the acquired historical data, so that the energy waste is avoided, and the comfort of a user in using the water heater is improved;
(2) according to the invention, the water temperature detector is arranged in the hot water storage tank to monitor the water temperature in the water storage tank in real time, the water heater is used for heating tap water, and when the water temperature is insufficient, the controller can control electric auxiliary heating to carry out secondary heating to reach the use standard of a user, so that the water heater is more intelligent, economic and environment-friendly.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a step diagram of an air source heat pump water heater control method based on the internet of things;
fig. 2 is a schematic structural diagram of an air source heat pump water heater device based on the internet of things.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
Referring to fig. 1, the invention relates to an air source heat pump water heater control method based on the internet of things, which comprises the following steps:
step S1: a user downloads control software of the air source heat pump water heater by using an intelligent terminal;
step S2: the control software is in communication connection with the air source heat pump water heater based on the Internet of things;
step S3: acquiring historical operating data of the air source heat pump water heater;
step S4: determining intelligent opening time according to the acquired historical data;
step S5: controlling the air source heat pump water heater to start a hot water making function when the starting requirement is met;
step S6: when the water level detector in the heat storage water tank detects that the water quantity is insufficient, the cold water pipe is opened to feed water;
step S7: cold water is heated by an air source heat pump water heater and then flows into a heat storage water tank;
step S8: when the water level detector in the heat storage water tank detects that the water quantity is sufficient, the cold water pipe is closed.
In step S3, the operation history data of the air source heat pump water heater includes the recoverable heat for heating water, which is generated by the air source heat pump water heater refrigerating every day in a preset time range; and obtaining the average daily hot water use heat of the air source heat pump water heater within a preset time range.
In step S4, determining the intelligent turn-on time according to the acquired historical data includes: according to the obtained recoverable heat and the hot water using heat, the time for independently starting the hot water making function of the air source heat pump hot water every day is determined; and determining the intelligent starting time according to the determined time for independently starting the water heating function every day.
In step S7, a water temperature sensor is installed at a water outlet of a condenser of the air source heat pump water heater, and when the temperature measured by the water temperature sensor does not reach the water temperature preset by the control software, the electric auxiliary heater is started to heat the water in the hot water storage tank until the preset temperature is reached.
Referring to fig. 2, the invention relates to an air source heat pump water heater device based on the internet of things, which comprises a heat storage water tank, a water heater body and a main controller;
the water heater body comprises a condenser, a liquid storage tank, a filter, an expansion valve, an evaporator and a compressor which are sequentially and circularly connected; the bottom of the condenser is connected with a cold water pipe; a water pump is arranged on the cold water pipe; the top of the condenser is connected with a hot water pipe; the hot water pipe is communicated with the heat storage water tank;
a water level detector is arranged in the heat storage water tank; a water outlet pipe is arranged at the bottom of the heat storage water tank;
the condenser, the liquid storage tank, the filter, the expansion valve, the evaporator, the compressor water pump and the water level detector are all connected with the main controller.
Wherein, the water outlet pipe and the cold water pipe are both provided with electromagnetic valves; the battery valve is connected with the controller.
Wherein, the bottom in the heat storage water tank is provided with an electric auxiliary heating coil; the electric auxiliary heating coil is connected with the controller; when the temperature measured by the water temperature sensor does not reach the water temperature preset by the control software, starting electric auxiliary heat to heat the water in the heat storage water tank until the preset temperature is reached; ensuring that the user has an adequate supply of hot water every day; energy waste caused by the premature opening of the heating water is avoided.
Wherein the controller adopts MSP430F5438 microcontroller.
It should be noted that, in the above system embodiment, each included unit is only divided according to functional logic, but is not limited to the above division as long as the corresponding function can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
In addition, it is understood by those skilled in the art that all or part of the steps in the method for implementing the embodiments described above may be implemented by a program instructing associated hardware, and the corresponding program may be stored in a computer-readable storage medium.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. An air source heat pump water heater control method based on the Internet of things is characterized by comprising the following steps:
step S1: a user downloads control software of the air source heat pump water heater by using an intelligent terminal;
step S2: the control software is in communication connection with the air source heat pump water heater based on the Internet of things;
step S3: acquiring historical operating data of the air source heat pump water heater;
step S4: determining intelligent opening time according to the acquired historical data;
step S5: controlling the air source heat pump water heater to start a hot water making function when the starting requirement is met;
step S6: when the water level detector in the heat storage water tank detects that the water quantity is insufficient, the cold water pipe is opened to feed water;
step S7: cold water is heated by an air source heat pump water heater and then flows into a heat storage water tank;
step S8: when the water level detector in the heat storage water tank detects that the water quantity is sufficient, the cold water pipe is closed.
2. The control method of the air source heat pump water heater based on the internet of things as claimed in claim 1, wherein in the step S3, the historical data of the operation of the air source heat pump water heater includes obtaining the recoverable heat which can be used for heating water and is generated by the air source heat pump water heater refrigerating every day on average within a preset time range; and obtaining the average daily hot water use heat of the air source heat pump water heater within a preset time range.
3. The internet-of-things-based air source heat pump water heater control method according to claim 1, wherein in the step S4, determining the intelligent turn-on time according to the acquired historical data includes: according to the obtained recoverable heat and the hot water using heat, the time for independently starting the hot water making function of the air source heat pump hot water every day is determined; and determining the intelligent starting time according to the determined time for independently starting the water heating function every day.
4. The Internet of things-based air source heat pump water heater control method according to claim 1, wherein in the step S7, a water temperature sensor is installed at a water outlet of a condenser of the air source heat pump water heater, and when the temperature measured by the water temperature sensor does not reach the water temperature preset by the control software, electric auxiliary heating is started to heat water in the hot water storage tank until the preset temperature is reached.
5. The utility model provides an air source heat pump water heater device based on thing networking, includes heat storage water tank, water heater body and main control unit, its characterized in that:
the water heater body comprises a condenser, a liquid storage tank, a filter, an expansion valve, an evaporator and a compressor which are sequentially and circularly connected; the bottom of the condenser is connected with a cold water pipe; a water pump is arranged on the cold water pipe; the top of the condenser is connected with a hot water pipe; the hot water pipe is communicated with the heat storage water tank;
a water level detector is arranged in the heat storage water tank; a water outlet pipe is arranged at the bottom of the heat storage water tank;
the condenser, the liquid storage tank, the filter, the expansion valve, the evaporator, the compressor water pump and the water level detector are all connected with the main controller.
6. The air source heat pump water heater device based on the internet of things as claimed in claim 5, wherein the water outlet pipe and the cold water pipe are both provided with electromagnetic valves; the battery valve is connected with the controller.
7. The Internet of things-based air source heat pump water heater control method and device according to claim 5 or 6, wherein an electric auxiliary heating coil is arranged at the bottom in the hot water storage tank; the electric auxiliary heating coil is connected with the controller.
8. The internet of things-based air source heat pump water heater control method and device according to claims 5-7, wherein the controller adopts an MSP430F5438 microcontroller.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010182585.9A CN111426065A (en) | 2020-03-16 | 2020-03-16 | Air source heat pump water heater control method and device based on Internet of things |
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| CN202010182585.9A CN111426065A (en) | 2020-03-16 | 2020-03-16 | Air source heat pump water heater control method and device based on Internet of things |
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| CN112378133A (en) * | 2020-11-06 | 2021-02-19 | 广州菲亚兰德科技有限公司 | Temperature control method of swimming pool and swimming pool equipment |
| CN113237121A (en) * | 2020-11-26 | 2021-08-10 | 林秋林 | Intelligent heating system of air source heat pump |
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Application publication date: 20200717 |