CN101846397A - Solar energy-wind energy-air energy comprehensive hot water supply system and implementation method thereof - Google Patents

Abstract

The invention provides a solar energy-wind energy-air energy comprehensive hot water supply system. The comprehensive hot water supply system fully utilizes the complementary characteristics of the solar energy, wind energy and air energy technologies, can selectively use the solar energy, the wind energy and the air energy to realize hot water supply according to different weather, ensures more sustainable hot water supply, and better realizes energy saving, environmental protection, economy and sustainable development.

Description

Solar energy, wind energy and air energy hot water integrated supply system and its realization method

technical field

The invention relates to the technical field of hot water supply, integrates the advantages of solar energy, wind energy and air energy, and specifically proposes a solar energy, wind energy and air energy integrated hot water supply system and an implementation method thereof.

Background technique

With the development of society, energy has become a restrictive factor of social progress and is constantly penetrating into various fields. With the continuous reduction of traditional energy sources, under the background of energy shortage and rising energy prices, the country vigorously promotes the sustainable development strategy, promotes the widespread application of renewable energy technologies and products in industrial production and daily life, and is also welcomed by the broad masses of the people. support. For this reason, people are turning their attention to the development of new energy sources and technological updates, especially environmentally friendly energy sources, such as nuclear energy, who can, wind energy, and solar energy. Therefore, the above-mentioned environmentally friendly energy sources are more and more valued and popularized.

As a kind of renewable energy, solar energy is more and more favored by people, and solar water heating, as a relatively mature technology, has also been widely promoted and applied. Due to the complex and changeable weather and the alternating day and night cycles, solar water heaters that rely on solar energy to obtain heat to generate hot water generally need to be combined with electric water heaters to heat complementary forms to meet the needs of generating heat through auxiliary electric water heaters when the light is not enough. water to meet the actual hot water supply needs. However, the auxiliary electric water heater has high power consumption, and dangers such as electric leakage and dry burning are prone to occur during its work. Moreover, at present, solar water heaters with complementary electric heating mainly use the whole box heating method. Since the water storage tank is designed in an integrated manner, the water in the whole box must meet the demand data set by the user before the water can be supplied, so it is difficult to achieve anytime, anywhere. Hot water comes out quickly.

Compared with the above-mentioned solar water heaters, air energy water heaters can fundamentally eliminate safety hazards such as electric water heater leakage, dry burning, and gas water heaters producing harmful gases during operation, and overcome the shortcomings of solar water heaters such as inability to work in rainy days or at night. With many advantages such as energy saving, safety and environmental protection, all-weather operation, and convenient use, it is in line with my country's strategic policy of energy, society, and environmental sustainable development, so it will surely become the most competitive new generation of water heater products in my country. However, compared with solar energy, air-energy water heaters use energy-saving energy and consume a relatively large amount of electricity. This is mainly reflected in the large energy consumption of the air compressor, and it also needs to be separately introduced into the mains to supply its operation.

Wind energy is also a renewable, pollution-free energy with huge reserves. Due to my country's abundant wind power resources, it has been rapidly developed and promoted under the support of national policies in recent years. However, due to the complex and changeable geographical environment and weather, wind turbines can only be operated when the wind power meets the operating conditions.

To sum up, the existing solar water heaters and wind power generators are affected by natural conditions, and even solar water heaters usually need to be supplemented with electric water heaters to meet the hot water supply needs; while air energy water heaters consume a lot of power and need to be introduced into the market. Electricity supplies its operation, and hot water supply is difficult to guarantee continuity.

With the global warming and energy crisis, all countries are stepping up the development and utilization of renewable energy and energy conservation, to minimize the emission of carbon dioxide and other greenhouse gases, and to protect the earth we depend on for survival. Although the existing solar energy, wind energy, and air energy are subject to the above-mentioned limitations, solar energy, wind energy, and air energy are complementary. If the advantages of solar energy, wind energy, and air energy technologies can be integrated, it will not only solve the problem of hot water supply It can also make more efficient use of various renewable resources and energy-saving energy, and further achieve the goals of energy conservation, environmental protection, economy, and sustainable development.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies in the prior art and provide a comprehensive hot water supply system of solar energy, wind energy and air energy. This integrated hot water supply system fully utilizes the complementary characteristics of solar energy, wind energy and air energy technologies According to different weather conditions, solar energy, wind energy and air energy can be selectively used to realize hot water supply, making hot water supply more sustainable, and better realizing energy saving, environmental protection, economical and sustainable development.

Another object of the present invention is to provide a realization method of the above solar energy, wind energy and air energy integrated hot water supply system.

The purpose of the present invention is achieved through the following technical solutions: solar energy, wind energy and air energy hot water supply system, comprising:

A solar water heater, which is provided with a heat collecting tube for obtaining solar energy and converting it into heat energy and a hot water tank for storing hot water, the heat collecting tube is connected to the hot water tank through a pipeline; the heat collecting tube is provided with a heat collection efficiency sensor, It is used to detect the heat collection efficiency of the solar water heater; a water temperature and water level sensor is installed in the hot water tank to detect the temperature and water level of the hot water inside the hot water tank;

At least one hot water demand terminal, facing the user, is used to send user demand information to the information management center, and is connected to the hot water tank through a pipeline;

The air energy water heater is equipped with an air compressor, receives control commands from the information management center, uses air energy technology to perform heating tasks, and inputs hot water into the hot water tank;

The wind generator supplies power to the information management center and the air compressor, and at the same time transmits the power generation and power generation condition status information to the information management center;

Mains power access unit is connected with information management center and air compressor respectively through an intelligent switch;

The information management center is connected to the mains power access unit through the smart switch to control whether to connect the mains power to the information management center itself and the air compressor; to receive the user demand information from the hot water demand terminal, and according to the water temperature The temperature and water level information from the water level sensor, as well as the heat collection efficiency information from the heat collecting tube, determine whether the solar water heater meets the water supply conditions. If so, control the hot water tank to directly supply hot water to the hot water demand terminal, otherwise, the solar water heater The water supply difference between the heat collection efficiency and the above user demand information, output the corresponding control command to the air energy water heater to perform the heating task, and the air energy water heater will supply hot water to the hot water tank to compensate for the water supply difference, and then control The hot water tank supplies hot water to the hot water demand terminal.

The installation position of the heat collecting pipe is lower than that of the hot water tank, and the water flow between the heat collecting pipe and the hot water tank is a natural circulation, specifically, the hot water rises and the cold water sinks.

Since the existing solar water heater mainly adopts the whole box heating method, as a technical improvement, the hot water tank of the present invention adopts a partitioned integrated hot water tank, and the partitioned integrated hot water tank is divided into two compartments, one of which is The body is a hot water area, and the other cabin is a natural heating area. The volumes of the two can be adjusted automatically, but the total volume remains unchanged. The natural heating area is connected with an external water source pipe; the water in the natural heating area reaches At the preset temperature, it will enter the hot water area, and at the same time start the water supply, and replenish water from the external water source pipe to the natural heating area; the water temperature and level sensor is specifically placed in the hot water area, and the preset temperature is specifically set by the information management center. Certainly.

The information management center exchanges data with the hot water demand terminal through wired or wireless means.

The realization method of the above solar energy, wind energy and air energy hot water comprehensive supply system includes the following steps:

a. At least one user-oriented hot water demand terminal sends user demand information to the information management center;

b. The information management center receives the user demand information from the hot water demand terminal, and judges whether the solar water heater meets the water supply conditions according to the temperature and water level information from the water temperature and water level sensor, and the heat collection efficiency information from the heat collection tube. Then control the hot water tank to directly supply hot water to the hot water demand terminal, otherwise, the heat collection efficiency of the solar water heater is compared with the water supply difference of the above user demand information, and the corresponding control command is output to the air energy water heater to perform the heating task. The water heater can supply hot water to the hot water tank to compensate for the water supply difference, and then control the hot water tank to supply hot water to the hot water demand terminal.

The user demand information specifically includes demand information such as time point, temperature, and water volume.

In terms of system power supply, the wind generator supplies power to the information management center and the air compressor, and at the same time transmits the power generation and power generation condition status information to the information management center; the information management center judges the wind power generator based on the power generation and power generation condition status information Whether the electric power meets the power supply needs of the information management center and the air compressor, if it only meets the power supply needs of the information management center but not the air compressor, then control the smart switch to supply the mains power to the air compressor; if neither is satisfied If the information management center and the air compressor need power supply, the intelligent switch is controlled to supply the mains power to the information management center and the air compressor at the same time.

In the above method, when multiple users send user demand information to the information management center, the specific operation of step b is as follows:

The information management center counts the user demand information from all hot water demand terminals, and groups the user demand information according to different time points. The information management center can obtain the total energy demand Q corresponding to each time point according to the energy conversion and heat capacity conversion. and the total water demand L at the same standard temperature T.

The information management center knows the heat collection efficiency of the solar water heater, so it is estimated whether the absorbed solar energy from the current time to each time point meets Q. If not, the air energy water heater will be used for energy supplementation, which can avoid blind use of auxiliary heating and achieve Maximum energy saving purpose.

The information management center will also know the emptying status through the sensor, and recycle the emptied hot water in time to achieve the purpose of water saving.

Among them, the standard temperature T and the total water demand L are determined according to the tolerable range of the hot water tank. The amount of water supplied and the air energy water heater are adjusted according to the real-time heat collection efficiency.

Compared with the prior art, the present invention has the following advantages and beneficial effects:

1. The present invention can carry out unified coordinated control and management of solar energy, wind energy, and air energy, rationally utilize resources, achieve hot water generation anytime and anywhere, and maximize the use of renewable energy to achieve low-cost, high-efficiency solutions Problem with hot water supply.

2. Solar energy, air energy, and wind energy complement each other, which greatly reduces the problems of high power consumption and high leakage risk when using electric heating. Compared with ordinary electric heating, the power consumption of air energy is reduced by about 75%, which makes it possible to use wind energy for power supply, and at the same time use the power generated by wind energy to supply power for air energy compressors and controllers.

3. Interval integrated water storage tanks can produce hot water anytime and anywhere. The compartmental integrated hot water tank divides the water tank into two compartments naturally, one part is the hot water area and the other is the natural heating area. The volume of the two water tanks can be adjusted automatically, but the total volume remains unchanged. When the water in the natural heating zone reaches a certain temperature, it enters the hot water zone, and at the same time starts the water supply, and enters part of the cold water to the natural heating zone.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

Example 1

The purpose of the present invention is achieved through the following technical solutions: solar energy, wind energy and air energy hot water supply system, comprising:

A solar water heater, which is provided with a heat collecting tube for obtaining solar energy and converting it into heat energy and a hot water tank for storing hot water, the heat collecting tube is connected to the hot water tank through a pipeline; the heat collecting tube is provided with a heat collection efficiency sensor, It is used to detect the heat collection efficiency of the solar water heater; a water temperature and water level sensor is installed in the hot water tank to detect the temperature and water level of the hot water inside the hot water tank;

At least one hot water demand terminal, facing the user, is used to send user demand information to the information management center, and is connected to the hot water tank through a pipeline;

The air energy water heater is equipped with an air compressor, receives control commands from the information management center, uses air energy technology to perform heating tasks, and inputs hot water into the hot water tank;

The wind generator supplies power to the information management center and the air compressor, and at the same time transmits the power generation and power generation condition status information to the information management center;

The mains access unit is electrically connected to the information management center and the air compressor through an intelligent switch (not shown in the figure);

The information management center is connected to the mains power access unit through the smart switch to control whether to connect the mains power to the information management center itself and the air compressor; to receive the user demand information from the hot water demand terminal, and according to the water temperature The temperature and water level information from the water level sensor, as well as the heat collection efficiency information from the heat collecting tube, determine whether the solar water heater meets the water supply conditions. If so, control the hot water tank to directly supply hot water to the hot water demand terminal, otherwise, the solar water heater The water supply difference between the heat collection efficiency and the above user demand information, output the corresponding control command to the air energy water heater to perform the heating task, and the air energy water heater will supply hot water to the hot water tank to compensate for the water supply difference, and then control The hot water tank supplies hot water to the hot water demand terminal.

The installation position of the heat collecting pipe is lower than that of the hot water tank, and the water flow between the heat collecting pipe and the hot water tank is a natural circulation, specifically, the hot water rises and the cold water sinks.

Since the existing solar water heater mainly adopts the whole box heating method, as a technical improvement, the hot water tank of the present invention adopts a partitioned integrated hot water tank, and the partitioned integrated hot water tank is divided into two compartments, one of which is The body is a hot water area, and the other cabin is a natural heating area. The volumes of the two can be adjusted automatically, but the total volume remains unchanged. The natural heating area is connected with an external water source pipe; the water in the natural heating area reaches At the preset temperature, it will enter the hot water area, and at the same time start the water supply, and replenish water from the external water source pipe to the natural heating area; the water temperature and level sensor is specifically placed in the hot water area, and the preset temperature is specifically set by the information management center. Certainly.

The information management center exchanges data with the hot water demand terminal through wired or wireless means.

The realization method of the above solar energy, wind energy and air energy hot water comprehensive supply system includes the following steps:

a. At least one user-oriented hot water demand terminal sends user demand information to the information management center;

b. The information management center receives the user demand information from the hot water demand terminal, and judges whether the solar water heater meets the water supply conditions according to the temperature and water level information from the water temperature and water level sensor, and the heat collection efficiency information from the heat collection tube. Then control the hot water tank to directly supply hot water to the hot water demand terminal, otherwise, the heat collection efficiency of the solar water heater is compared with the water supply difference of the above user demand information, and the corresponding control command is output to the air energy water heater to perform the heating task. The water heater can supply hot water to the hot water tank to compensate for the water supply difference, and then control the hot water tank to supply hot water to the hot water demand terminal.

The user demand information specifically includes demand information such as time point, temperature, and water volume.

In terms of system power supply, the wind generator supplies power to the information management center and the air compressor, and at the same time transmits the power generation and power generation condition status information to the information management center; the information management center judges the wind power generator based on the power generation and power generation condition status information Whether the electric power meets the power supply needs of the information management center and the air compressor, if it only meets the power supply needs of the information management center but not the air compressor, then control the smart switch to supply the mains power to the air compressor; if neither is satisfied If the information management center and the air compressor need power supply, the intelligent switch is controlled to supply the mains power to the information management center and the air compressor at the same time.

In the above method, when multiple users send user demand information to the information management center, the specific operation of step b is as follows:

The information management center counts the user demand information from all hot water demand terminals, and groups the user demand information according to different time points. For example, at time t1, the temperature demand of user x is a1, the water volume demand is b1, and the temperature demand of user y is The demand is a2, the water volume demand is b2, the temperature demand of user z is a3, the water volume demand is b3, etc. According to the energy conversion and heat capacity conversion, the total energy demand Q1 at time t1 and the total water volume at the same standard temperature T1 can be obtained Requires L1.

The information management center knows the heat collection efficiency of the solar water heater, so it is estimated whether the absorbed solar energy from the current time to the t1 time point meets Q1. If not, the air energy water heater will be used for energy supplementation, which can avoid the blind use of auxiliary heating and achieve Maximum energy saving purpose.

The information management center will also know the emptying status through the sensor, and recycle the emptied hot water in time to achieve the purpose of water saving.

Among them, the standard temperature T1 and the total water demand L1 are determined according to the tolerable range of the water tank. The amount of water supplied and the air energy water heater are adjusted according to the real-time heat collection efficiency.

The above-mentioned embodiment is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited by the above-mentioned embodiment, and any other changes, modifications, substitutions, combinations, Simplifications should be equivalent replacement methods, and all are included in the protection scope of the present invention.

Claims (8)

1. solar energy, wind energy and air energy comprehensive hot water supply system is characterized in that: comprising:

Solar water heater, it is provided with the boiler that is used to the thermal-collecting tube that obtains solar energy and be converted to heat energy and is used to store hot water, and described thermal-collecting tube is connected by pipeline with boiler; Described thermal-collecting tube is provided with the collecting efficiency sensor, is used to detect the collecting efficiency of solar water heater; Be provided with water-temperature water-level sensor in the described boiler, be used to detect boiler internal hot-water temperature and water level;

At least one hot water demand's terminal, user oriented is used for sending user's request information to Center For Information Management, and is connected by pipeline with described boiler;

Air-source water heater is provided with air compressor, receives the control command of Center For Information Management, adopts air energy technology with the execution heating tasks, and hot water is input to described boiler;

Wind-driven generator for Center For Information Management and air compressor power supply, is passed to Center For Information Management with generated energy and power generation conditions status information simultaneously;

The civil power access unit is connected with Center For Information Management, air compressor electric power respectively by an intelligent switch;

Center For Information Management is connected with the civil power access unit by described intelligent switch, inserts civil power with control and whether gives Center For Information Management self and air compressor; Receive the user's request information that hot water demand's terminal transmits, the temperature and the water level information that transmit according to water-temperature water-level sensor, and the collecting efficiency information that transmits of thermal-collecting tube, judge whether solar water heater satisfies water supply conditions, as satisfying, then control boiler direct heating water to hot water demand's terminal, otherwise, the water supply difference that the collecting efficiency of solar water heater is differed than above-mentioned user's request information, the output control commands corresponding is carried out heating tasks to air-source water heater, to the boiler hot-water supply,, control boiler heat supply water again by air-source water heater to hot water demand's terminal to compensate described water supply difference.

2. solar energy according to claim 1, wind energy and air energy comprehensive hot water supply system, it is characterized in that: the installation site of described thermal-collecting tube is lower than boiler, current between thermal-collecting tube and the boiler are Natural Circulation, specifically are that hot water rises, cold water sinks.

3. solar energy according to claim 1 and 2, wind energy and air energy comprehensive hot water supply system, it is characterized in that: described boiler adopts the integrated boiler of compartment, the integrated boiler of this compartment is divided into two cabin bodies, one of them cabin body is the hydrothermal area, another cabin body is the nature thermal treatment zone, both volumes can be adjusted automatically, but cumulative volume is constant, and the described natural thermal treatment zone is connected with an external water source tube; Can enter the hydrothermal area when water of the described natural thermal treatment zone reaches preset temperature, start go up water simultaneously, from described external water source tube moisturizing to the natural thermal treatment zone; Described water-temperature water-level sensor specifically places the hydrothermal area, and described preset temperature is specifically set by Center For Information Management.

4. solar energy according to claim 3, wind energy and air energy comprehensive hot water supply system is characterized in that: described Center For Information Management and hot water demand's terminal are carried out data interaction by wired or wireless mode.

5. solar energy according to claim 3, wind energy and air energy comprehensive hot water supply system are realized the method for solar energy, wind energy and air energy comprehensive hot water supply, it is characterized in that step is as follows:

A. at least one user oriented hot water demand's terminal sends user's request information to Center For Information Management;

B. Center For Information Management receives the user's request information that hot water demand's terminal transmits, the temperature and the water level information that transmit according to water-temperature water-level sensor, and the collecting efficiency information that transmits of thermal-collecting tube, judge whether solar water heater satisfies water supply conditions, as satisfying, then control boiler direct heating water to hot water demand's terminal, otherwise, the water supply difference that the collecting efficiency of solar water heater is differed than above-mentioned user's request information, the output control commands corresponding is carried out heating tasks to air-source water heater, to the boiler hot-water supply,, control boiler heat supply water again by air-source water heater to hot water demand's terminal to compensate described water supply difference.

6. solar energy according to claim 5, wind energy and air energy comprehensive hot water Supply Method is characterized in that: described user's request information specifically comprises: time point, temperature and water yield demand information.

7. solar energy according to claim 5, wind energy and air energy comprehensive hot water Supply Method, it is characterized in that: wind-driven generator is Center For Information Management and air compressor power supply, simultaneously generated energy and power generation conditions status information is passed to Center For Information Management; Center For Information Management judges according to generated energy and power generation conditions status information whether electric weight that this wind-driven generator transmits satisfies the power supply needs of Center For Information Management and air compressor, do not satisfy the power supply needs of air compressor if only satisfy the power supply needs of Center For Information Management, then control intelligent switch supply civil power and give air compressor; If all do not satisfy the power supply needs of Center For Information Management and air compressor, then control intelligent switch and supply civil power simultaneously to Center For Information Management and air compressor.

8. solar energy according to claim 5, wind energy and air energy comprehensive hot water Supply Method is characterized in that, when a plurality of users sent user's request information to Center For Information Management, step b concrete operations were as follows:

Center For Information Management is added up the user's request information that all hot water demand's terminals transmit, by different time points user's request information is divided into groups, Center For Information Management converts according to Energy Conversion and thermal capacitance, can obtain the Total Water demand L under corresponding overall energy requirement Q of each time point and the same normal temperature T.

Center For Information Management is known the collecting efficiency of solar water heater, thereby estimates whether the systemic solar energy of time from the current time to each time point satisfies Q, will not utilize air-source water heater to carry out energy supplement if do not satisfy.

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