CN203797767U - Off-grid wind power thermal storage heating systemused for rural housing and provided withself-adaptive load powerwith wind - Google Patents

Abstract

The utility model discloses an off-grid rural house wind power heat storage and heating system whose load power adapts to the wind, which belongs to the field of thermal energy and its utilization. The off-grid rural residential wind power thermal storage heating system with load power adaptive to the wind has the following structure: the output end of the wind generator (1) and the wind speed sensor (5) and the input end of the load power adjustment device (6) connection, the output end of the load power wind control device (6) is connected to the heating element (4) of the indoor heat storage and heating conversion device through the switch controller (2), and the switch controller (2) is also connected to the 220V household power supply (3 )connect. The utility model provides a non-polluting, low-cost and widely-used distributed wind energy heat storage and heating system for rural residents in the north. Significant advantages of platooning.

Description

Off-grid rural residential wind power heat storage heating system with load power adaptive to the wind

technical field

The utility model relates to an off-grid wind power heat storage and heating system for rural residences whose load power adapts to the wind, which is an energy-saving and emission-reducing heating system using wind energy for heat storage and heating, and belongs to the field of heat energy and its utilization.

Background technique

At present, there are mainly the following types of heating methods at home and abroad in terms of heating equipment and facilities: one is central heating. This is a relatively traditional heating method, which is mainly divided into municipal heat pipe network and boiler centralized heating in the community. The second is the decentralized heating method: that is, each household independently forms a heating system. The third is the inverter air conditioner, heating in winter and cooling in summer. The fourth is the water source central air-conditioning system, also known as the ground source heat pump, which utilizes groundwater resources or various water sources at a temperature of 12°C to 35°C at a depth of 20-30 meters underground, and provides cold water at 5°C to 7°C to cool the room in summer; Hot water at about 45°C is supplied to the room for heating.

There are the following problems in the above-mentioned several heating methods: 1. because there are no valves and heat meters for household metering in many residential buildings, the householders cannot adjust the required heat according to their own needs. ②Decentralized heating and inverter air conditioners can flexibly adjust the heating time and temperature according to their own needs, but their cost is very expensive, and air pollution is also an important problem that must be faced. ③Water source central air conditioning, also known as ground source heat pump, is an energy-saving and environmentally friendly heating method, but it is severely restricted by groundwater. In short, the above-mentioned heating methods all have the disadvantages of using traditional energy sources such as high carbon emissions, large consumption, and lack of energy conservation, which do not meet the national policy requirements of low-carbon environmental protection, energy conservation and emission reduction.

In addition, the traditional wind energy heating system also has the following problems. It stores wind energy in the battery, and then converts the DC power in the battery into AC power with a voltage of 220V and a frequency of 50Hz through an inverter to supply power for heating equipment. But the problem is that the saturation problem of the storage battery and the secondary pollution problem not only waste energy, but also cause serious pollution to the environment. On the other hand, when the wind turbine has a fixed load, the generator can output power effectively only when the output power of the generator matches the power of the load. When the output power of the generator is less than the power of the load in the breeze phase, the generator can be wrapped and stopped. Rotation has seriously affected the effective utilization of wind energy.

Contents of the invention

In order to solve the above technical problems, the utility model provides an off-grid rural residential wind power heat storage heating system whose load power adapts to the wind. Distributed wind energy heat storage heating system, this system can make full use of wind energy, a pollution-free renewable resource, and has the advantages of convenience, energy saving, environmental protection, and emission reduction.

The purpose of this utility model is achieved through the following technical solutions:

The off-grid rural residential wind power thermal storage heating system with load power adaptive to the wind has the following structure: the output terminals of the wind generator and the wind speed sensor are connected to the input terminal of the load power control device according to the wind, and the load power is controlled by the wind control device. The output end is connected with the heating element of the indoor heat storage and heating conversion device through the switch controller, and the switch controller is also connected with the 220V household power supply. the

The structure of the above-mentioned indoor heat storage and heating conversion device is as follows: the surface of the Kang Kang in the residential house is laid, and the pebble layer, the heating element and the bottom plate of the Kang Kang are successively laid under the surface of the Kang Kang.

The above-mentioned heating element adopts a far-infrared heating fiber soft board, and the far-infrared heating fiber soft board is provided with a positive pole and a negative pole.

The circuit structure of the above-mentioned load power adjusting device with the wind is as follows: the output end of the wind generator is connected to the input end of the rectification circuit, the output end of the rectification circuit is connected to the boost circuit, the output end of the boost circuit is connected to the DC-DC conversion circuit The input terminal is connected, the output terminal of the DC-DC conversion circuit is connected with the input terminal of the filter circuit, the output terminal of the power factor correction circuit is connected with the input terminal of the boost circuit, the DC-DC conversion circuit and the filter circuit, and the output terminal of the filter circuit Connect to the input end of the PWM drive circuit, the output end of the PWM drive circuit is connected to the power load, the power load is a heating element, the output end of the power load is connected to the input end of the isolated I/O, and the output end of the isolated I/O is connected to the PWM The input terminal of the drive circuit is connected; the input terminal of the signal sampling and conversion circuit is connected with the output terminal of the wind speed sensor and the wind power generator respectively, the output terminal of the signal sampling and conversion circuit is connected with the input terminal of the PWM control circuit, and the output terminal of the PWM control circuit The terminal is connected to the input terminal of the isolated I/O.

Due to the adoption of the above technical solution, the utility model has the following advantages and positive effects: 1) A wind control device is designed for the residential fan power generation system, which effectively ensures the stable output of low wind power. 2) There is no need for conversion devices such as inverters and batteries for energy storage, and the structure is simple, which effectively reduces user operating costs. 3) It can form a wind-solar complementary system with the photovoltaic power generation heating system to expand the application area. 4) In the case of windless weather and insufficient wind energy, the user can also choose the auxiliary heat source of the household power supply. 5) The goals of energy saving, emission reduction, low-carbon and environmental protection are achieved, and wind energy, a renewable energy source, is fully utilized. The utility model provides a non-polluting, low-cost, and widely-used distributed wind energy heat storage and heating system for rural residents in the north. This system can make full use of wind energy, a non-polluting renewable resource, and has the advantages of convenience, energy saving, and environmental protection. Advantages, to achieve the purpose of low carbon, energy saving, emission reduction.

Description of drawings

Fig. 1 Schematic diagram of the structure of the utility model.

Figure 2 is a schematic diagram of the partial structure of the heat storage and heating device of the utility model.

Figure 3 is a schematic diagram of the partial structure of the heating element of the utility model.

Fig. 4 is a block diagram of the circuit structure of the utility model load power adjusting device according to the wind.

In the figure: 1. Wind generator; 2. Switch controller; 3. 220V household power supply; 4. Heating element; 5. Wind speed sensor; 6. Load power control device according to the wind; 9. Hanging Kang floor.

Detailed ways

As shown in Figure 1, the off-grid rural residential wind power heat storage heating system of the utility model whose load power adapts to the wind has the following structure: the output end of the wind power generator 1 and the wind speed sensor 5 and the load power control device 6 according to the wind The input terminal of the load power wind control device 6 is connected to the heating element 4 of the indoor heat storage and heating conversion device through the switch controller 2, and the switch controller 2 is also connected to the 220V household power supply 3. As shown in Figure 2, the structure of the indoor heat storage and heating conversion device is as follows: it includes the surface 8 of the hanging kang in the residential house, and the pebble layer 7, the heating element 4 and the floor 9 of the hanging kang are laid in sequence under the surface 8 of the hanging kang, as shown in Fig. As shown in FIG. 3 , the heating element 4 adopts a far-infrared heating fiber soft board, and the far-infrared heating fiber soft board is provided with a positive electrode and a negative electrode. The wind power generator 1 can be a small household wind power generator.

The above-mentioned load power adjusting device with the wind can adopt commercially available existing devices that have the signal of collecting wind speed sensor and wind power generator 1, and adopt the PWM control circuit to control the power of the power load heating element 4 according to the wind speed, and can also adopt the utility model. The designed load power adjusting and controlling device with the wind cannot be used to limit the scope of protection of the present utility model.

As shown in Figure 4, the circuit structure of the load power adjusting device according to the wind of the utility model is as follows: the output end of the wind power generator 1 is connected with the input end of the rectification circuit, the output end of the rectification circuit is connected with the boost circuit, and the output of the boost circuit The terminal is connected to the input terminal of the DC-DC conversion circuit, the output terminal of the DC-DC conversion circuit is connected to the input terminal of the filter circuit, the output terminal of the power factor correction circuit is connected to the input of the boost circuit, the DC-DC conversion circuit and the filter circuit The output end of the filter circuit is connected to the input end of the PWM drive circuit, the output end of the PWM drive circuit is connected to the power load, the power load is the heating element 4, the output end of the power load is connected to the input end of the isolated I/O, The output end of the isolated I/O is connected to the input end of the PWM drive circuit; the input end of the signal sampling and conversion circuit is connected to the output end of the wind speed sensor 5 and the wind power generator 1 respectively, and the output end of the signal sampling and conversion circuit is connected to the PWM control circuit The input end of the circuit is connected, and the output end of the PWM control circuit is connected with the input end of the isolation I/O.

Adopting the load power adjusting and controlling device according to the wind of the utility model can make the system run more stably.

The working principle of the utility model is as follows: the circuit structure of the system is: after the wind power generator 1 converts wind energy into electric energy, it is used as the AC main power supply to connect the load power with the wind control device 6, and then the switch controller 2 is connected to the heating element 4 to form a circuit ; Electric energy is converted into thermal energy by heating element 4 to provide heating for residential buildings. The heating element 4 is a far-infrared heating fiber soft board. The switch controller 2 is also connected with the civilian 220V AC power supply 3. The load power wind control device used mainly includes signal acquisition and conversion circuits, rectification circuits, booster circuits, filter circuits, PWM control circuits, and PWM drive circuits. pressure, filtering, and matching with the collected load power to achieve stable and efficient low-wind output. The load power control device 6 collects the signals of the wind speed sensor 5 and the small household wind power generator 1, and uses a PWM drive circuit to follow the wind speed. Control power load heating element 4 power. The wind energy collection device is a small household type wind power generator 1, and according to the electricity demand of rural residents, a fan with a power of less than 1000W is generally selected. The load power wind control device collects the wind speed and the output power of the wind generator in real time, automatically predicts and adjusts the load power input, so as to ensure that the small wind generator can directly supply power to the load even when the output power is low, thus saving batteries and inverters device.

This system does not need conversion devices such as inverters and batteries for energy storage, and its cost is low, its structure is simple, and its utilization rate is much higher than that of traditional wind energy heating systems. Inverters are mainly for solar panel power generation systems. Generally, wind turbines are used in power generation systems, and also include controllers, batteries, and inverters. Because the small household wind power generation system outputs 12-220V alternating current of different levels, and many occasions require 220v alternating current, which requires an inverter to convert the direct current in the battery into the standard mains 220V alternating current. The heating element of this system adopts far-infrared heating fiber soft board, which can use direct current or alternating current of civilian mains, and can also obtain high-efficiency conversion of electric energy, so there is no need to install an inverter. Since there are many styles of inverters, and the quality is also good or bad, the cost of not installing inverters can save 500-1000 yuan. In addition, there is a problem of conversion efficiency in the inverter. The heat storage element used in this system is a heating soft board, and the 220V AC output from the wind turbine can directly supply power to it, which improves the conversion efficiency.

The heating element 4 of this system is a far-infrared heating fiber soft board, which is mainly used for heat storage and heating. The pebble layer is mainly to slow down the heat loss and store heat more effectively.

The far-infrared heating fiber soft board is a utility model by Pu Zailin and others, one of the inventors of the utility model. "(patent number: 200620153473.6), has been finalized and produced by Shenyang Hanbeier Technology Co., Ltd., and its structure is shown in Figure 3. The public can freely formulate or purchase according to the specifications.

The innovation point of the utility model is that the whole system only needs the wind generator, the heating element and the simple link circuit to realize the purpose of wind heat storage and heat release so as to heat the house. Secondly, the utility model can use the household power supply as an auxiliary heat source under continuous windless conditions to ensure stable and continuous heating.

The utility model is suitable for rural residential buildings in areas with sufficient wind energy. It has the characteristics of simple structure, convenient transportation and installation, reliable operation, and long service life. It is a good heating choice for the integration of wind energy and buildings. At the same time, when the wind energy is sufficient in summer, it can also supply power to the grid through the grid-connected equipment. The utility model also responds to the national call for energy saving, emission reduction and low-carbon economy development, and effectively utilizes renewable energy.

The utility model is an energy-saving and emission-reducing heating system utilizing a new type of clean energy. and ecological benefits.

Wind energy is a clean, efficient and inexhaustible new energy source. It is rich in resources, can be used for free, does not require transportation, and has no pollution to the environment. It is an energy strategic decision for sustainable development of governments. This system makes full use of wind energy and has very significant social, economic and ecological benefits. It will definitely become the trend of future development, and an era of wind energy heating is coming.

Claims (4)

1. An off-grid rural residential wind power thermal storage heating system with load power adaptive to the wind, which is characterized in that the structure is as follows: the output end of the wind generator (1) and the wind speed sensor (5) and the load power wind control device (6 ), the output end of the load power wind control device (6) is connected to the heating element (4) of the indoor heat storage and heating conversion device through the switch controller (2), and the switch controller (2) is also connected to the 220V Household power (3) connection. 2. The off-grid rural residential wind power heat storage and heating system according to claim 1, characterized in that the structure of the indoor heat storage and heating conversion device is as follows: Hanging kang kang in the residential house Face (8), lay pebble layer (7), heating element (4) and Hanging Kang bottom plate (9) successively below Hanging Kang Kang face (8). 3. The off-grid rural residential wind power heat storage heating system according to claim 1 or 2, characterized in that the heating element (4) adopts a far-infrared heating fiber soft board, and the far-infrared A positive pole and a negative pole are arranged on the heating fiber soft board. 4. The off-grid rural residential wind power heat storage heating system with load power adaptive to the wind according to claim 1, characterized in that the circuit structure of the load power wind control device (6) is as follows: wind power generator The output terminal of (1) is connected to the input terminal of the rectification circuit, the output terminal of the rectification circuit is connected to the boost circuit, the output terminal of the boost circuit is connected to the input terminal of the DC-DC conversion circuit, and the output terminal of the DC-DC conversion circuit is connected to the The input end of the filter circuit is connected, the output end of the power factor correction circuit is connected with the input end of the boost circuit, the DC-DC conversion circuit and the filter circuit, the output end of the filter circuit is connected with the input end of the PWM drive circuit, and the PWM drive circuit The output end is connected to the power load, the power load is a heating element (4), the output end of the power load is connected to the input end of the isolated I/O, and the output end of the isolated I/O is connected to the input end of the PWM drive circuit; signal sampling and The input ends of the conversion circuit are respectively connected to the output ends of the wind speed sensor (5) and the wind generator (1), the output ends of the signal sampling and conversion circuit are connected to the input ends of the PWM control circuit, and the output ends of the PWM control circuit are connected to the isolated I /O input connection.